<p>Today's <strong>Image of the Day</strong> from the European Space Agency features the galaxy I Zwicky 18, which was captured in remarkable detail by the James Webb Space Telescope.</p>



<p>I Zwicky 18 is a blue compact dwarf <a href="https://www.earth.com/news/newly-discovered-stars-milky-way-are-old-as-universe/" target="_blank" rel="noreferrer noopener">galaxy</a> located approximately 59 million light-years away in the constellation Ursa Major.&nbsp;</p>



<h2 class="wp-block-heading" id="h-star-formation-in-i-zwicky-18">Star formation in I Zwicky 18</h2>



<p>The galaxy is notable for its relatively young appearance and the fact that it contains very few heavy elements. These characteristics indicate that it has experienced little <a href="https://www.earth.com/news/baby-stars-release-sneezes-of-gas-and-dust-as-they-develop/" target="_blank" rel="noreferrer noopener">star formation</a> compared to other galaxies of similar age.</p>



<p>“The galaxy was first identified by Swiss astronomer Fritz Zwicky in the 1930’s and resides roughly 59 million light-years from Earth,” noted <a href="https://www.esa.int/" target="_blank" rel="noreferrer noopener">ESA</a>. “This galaxy has gone through several sudden bursts of star formation.”&nbsp;</p>



<p>According to ESA, I Zwicky 18 is typical of the kinds of galaxies that inhabited the early universe and is much smaller than our <a href="https://www.earth.com/news/runaway-star-j1249-36-spotted-trying-to-escape-our-milky-way-galaxy/" target="_blank" rel="noreferrer noopener">Milky Way</a>.</p>



<h2 class="wp-block-heading" id="h-webb-telescope-image-of-the-galaxy">Webb telescope image of the galaxy</h2>



<p>“Two major starburst regions are embedded in the heart of the galaxy. The wispy brown filaments surrounding the central starburst region are bubbles of gas that have been heated by stellar winds and intense ultraviolet radiation unleashed by hot, young stars,” said ESA.</p>



<p>“A companion galaxy resides nearby to the dwarf galaxy, which can be seen at the bottom of the wider-field image. The companion may be interacting with the dwarf galaxy and may have triggered that galaxy's recent star formation.”&nbsp;</p>



<p>ESA explained that the “orange blobs” surrounding the galaxy are the dim glow from ancient fully formed galaxies at much larger distances.</p>



<h2 class="wp-block-heading" id="h-key-characteristics-of-i-zwicky-18">Key characteristics of I Zwicky 18</h2>



<p>As previously mentioned, the galaxy has a very low abundance of elements heavier than hydrogen and helium, suggesting that it has not undergone significant stellar processing.</p>



<h3 class="wp-block-heading" id="h-young-stellar-population-nbsp">Young stellar population&nbsp;</h3>



<p>Despite its old age, I Zwicky 18 contains many young, hot stars. This suggests that it might have experienced a burst of <a href="https://www.earth.com/news/hubble-detects-awe-inspiring-newborn-star/" target="_blank" rel="noreferrer noopener">star formation</a> relatively recently in its history.</p>



<h3 class="wp-block-heading" id="h-interstellar-medium-nbsp">Interstellar medium&nbsp;</h3>



<p>The galaxy has a high density of gas, which is a prime ingredient for star formation. This gas is mostly in the form of hydrogen.</p>



<h3 class="wp-block-heading" id="h-unusual-characteristics">Unusual characteristics</h3>



<p>Its characteristics are more typical of primordial galaxies found in the early universe, making it a valuable object of study for understanding galaxy formation and evolution.</p>



<p>Ultimately, I Zwicky 18 provides insights into the conditions and processes that might have been prevalent in the early universe.</p>



<h3 class="wp-block-heading" id="h-life-cycles-of-stars-and-dust">Life cycles of stars and dust</h3>



<p>The image was captured as part of a Webb program to study the life cycle of dust in I Zw 18.&nbsp;</p>



<p>“Scientists are now building off of previous research with Hubble obtained at optical wavelengths, studying individual dusty stars in detail with Webb’s equivalent spatial resolution and sensitivity at infrared wavelengths.”&nbsp;</p>



<p>ESA noted that this galaxy is of particular interest as its content of elements heavier than helium is one of the lowest of all known <a href="https://www.earth.com/news/early-galaxy-formation-occurred-much-faster-than-we-thought/" target="_blank" rel="noreferrer noopener">galaxies</a> in the local universe.&nbsp;</p>



<p>“Such conditions are thought to be similar to those in some of the first star-forming galaxies at high redshift, so the Webb study of I Zw 18 should shed light on the life-cycle of stars and dust in the early universe.”</p>



<h2 class="wp-block-heading" id="h-the-constellation-ursa-major">The constellation Ursa Major </h2>



<p>Ursa Major, also known as the Great Bear, is one of the most prominent and easily recognizable constellations in the northern sky. </p>



<p>Its name, "Ursa Major," means "Great Bear" in Latin, and it has been a significant part of various mythologies and star lore across cultures for thousands of years. </p>



<p>One of the most famous asterisms within Ursa Major is the Big Dipper, a group of seven bright stars that form a shape resembling a ladle or dipper. The Big Dipper is often used as a navigation tool because it points to Polaris, the North Star, located in the nearby constellation Ursa Minor.</p>



<p>Ursa Major is best viewed in the northern hemisphere and is circumpolar, meaning it is visible year-round for much of the Northern Hemisphere. Its position changes with the seasons, rotating around Polaris, the North Star.</p>



<p>Image Credit: NASA/ESA/CSA James Webb Space Telescope</p>



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Dwarf galaxy provides a window into the early universe

Today's Image of the Day from the European Space Agency...

<p>Today's Image of the Day from the European Space Agency features massive amounts of smoke rising from multiple wildfires in Southern California&nbsp;</p>



<p>The largest blaze is the Palisades Fire, which ignited near the Pacific Palisades neighborhood in Los Angeles on January 7, 2025.&nbsp;</p>



<h2 class="wp-block-heading" id="h-explosive-wildfire-conditions">Explosive wildfire conditions</h2>



<p>The Palisades Fire spread rapidly due to severe drought conditions and strong Santa Ana winds, with gusts reaching up to 100 miles per hour.&nbsp;</p>



<p>Within hours, the fire expanded from 200 acres to over 2,900 acres, threatening thousands of structures and prompting mandatory evacuations for thousands of residents.</p>



<h2 class="wp-block-heading" id="h-most-ferocious-winds-in-years">Most ferocious winds in years</h2>



<p>A report from Fox Weather noted: “More than 260,000 people are under some sort of evacuation statement as multiple uncontained wildfires consume everything in their path.”</p>



<p>The news agency said that the fires are fueled by the “most ferocious Santa Ana winds in over 14 years.” The report further noted that “the level of destruction extends both north and south along the coast, with hurricane-force winds that are incredibly strong, dry, and unpredictable.”&nbsp;</p>



<p>As of January 8, the Palisades Fire had rapidly exploded to over 5,000 acres and remained uncontained. The cause of the fire is currently under investigation.&nbsp;</p>



<p>“This image captured by the Copernicus Sentinel-2 mission vividly depicts the smoke billowing from the fire near Santa Monica at 10:36 local time on January 7, 2025, not long after the fire broke out. The blaze has since caused widespread damage and concern,” noted <a href="https://www.esa.int/ESA_Multimedia/Images/2025/01/Los_Angeles_ablaze" target="_blank" rel="noreferrer noopener">ESA</a>.</p>



<h2 class="wp-block-heading" id="h-widespread-damage-and-concern">Widespread damage and concern</h2>



<p>The Los Angeles Fire Department (LAFD) has deployed over 1,400 firefighters to combat the blaze. However, the intense winds have hindered aerial firefighting efforts, as aircraft were grounded for safety reasons.&nbsp;</p>



<p>The fire has destroyed more than 1,000 structures, including several homes in Malibu, and has led to significant traffic congestion as residents evacuate the area.&nbsp;</p>



<h2 class="wp-block-heading" id="h-warning-for-extreme-fire-behavior-nbsp">Warning for extreme fire behavior&nbsp;</h2>



<p>On Monday, before the fires broke out, the weather service office in Los Angeles warned that wind gusts could reach 100 miles per hour in some areas this week - creating the potential for "extreme fire behavior.” </p>



<p>In addition to the Palisades Fire, three other significant blazes include the Eaton Fire in the Altadena region and the Hurst Fire in northern Sylmar. These fires have prompted further evacuations and continue to threaten numerous structures.&nbsp;</p>



<p>"L.A. County and all 29 fire departments in our county are not prepared for this type of widespread disaster," LA County Fire Chief Anthony C. Marrone said at a news conference. "There are not enough firefighters in L.A. County to address four separate fires of this magnitude."</p>



<h2 class="wp-block-heading" id="h-a-hurricane-of-fire">A hurricane of fire</h2>



<p>High wind warnings and red flag warnings in effect across the region indicate that the critical fire weather conditions are ongoing.&nbsp;</p>



<p>Residents are advised to remain vigilant, adhere to evacuation orders, and stay informed through official channels as the situation evolves.</p>



<p>"Winds will not die down much until noon on Wednesday around Los Angeles," said meteorologist Ryan Maue on X. "The worst is yet to come in next few hours with 80-105 mph gusts. This is a hurricane of fire."</p>



<h2 class="wp-block-heading" id="h-wildfires-in-southern-california-nbsp">Wildfires in Southern California&nbsp;</h2>



<p>Wildfires in Southern California are particularly severe due to a combination of factors. The region’s hot, dry climate creates ideal conditions for fires, especially during the summer and fall when vegetation is parched.&nbsp;</p>



<p>Seasonal Santa Ana winds exacerbate the problem by driving flames rapidly across the landscape, making fires difficult to contain. The area's diverse and often dense vegetation, such as chaparral and grasslands, provides abundant fuel.&nbsp;</p>



<p>Furthermore, Southern California’s growing urban footprint increases the risk of fires igniting due to human activity, while also placing more people and infrastructure in harm’s way.&nbsp;</p>



<p>Climate change intensifies these challenges by extending fire seasons and increasing the frequency of extreme heat and drought events, creating a feedback loop that makes wildfires increasingly destructive.</p>



<p>—----</p>



<p>Image Credit: ESA&nbsp;</p>



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Explosive wildfires in California fueled by hurricane-force winds

<p>Today's Image of the Day from NASA Earth Observatory features a 9.5-mile section of Pangong Lake on the western end of the Tibetan Plateau. The image was captured by a crew member onboard the International Space Station. </p>



<p>“In this winter scene, a sheet of cracked ice tops part of the lake,” noted <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA</a>. “On the left side, open water appears blue. Shallow water offshore of a delta, formed by a small, winding river, appears green."</p>



<p>"Parallel lines along the coastlines of bays are visible in the high-resolution version of this image. These lines indicate raised beaches, which formed in the past when lake levels were higher.”</p>



<p>NASA pointed out that several roads cut across the landscape, including one with switchbacks that ascends a steep slope. "These roads facilitate tourist travel from both India and China.”&nbsp;</p>



<h2 class="wp-block-heading" id="h-migratory-birds-at-pangong-lake-nbsp">Migratory birds at Pangong Lake&nbsp;</h2>



<p>Pangong Lake and its surroundings are home to numerous bird species, particularly <a href="https://www.earth.com/news/migratory-birds-burn-unexpected-amounts-of-protein/" target="_blank" rel="noreferrer noopener">migratory birds</a>. Visitors can spot various waterfowl and waders that are rarely seen elsewhere.</p>



<p>“During the summer, species such as bar-headed geese and Brahminy ducks attract bird watchers to the lake, which is a major breeding ground for migrating birds,” said NASA.</p>



<p>Pangong Lake is one of the few places in India where the endangered black-necked crane is found during its breeding season. </p>



<p>Ruddy shelduck and brown-headed <a href="https://www.earth.com/news/gulls-are-shifting-their-habitats-to-urban-areas/" target="_blank" rel="noreferrer noopener">gulls</a> are also frequently spotted around the lake. The ruddy shelduck is known for its striking orange-brown body and creamy white head, while the brown-headed gulls are often seen flying or swimming in the lake.</p>



<h2 class="wp-block-heading" id="h-pangong-lake-nbsp">Pangong Lake&nbsp;</h2>



<p>Pangong Lake is a stunning high-altitude lake situated in the <a href="https://www.earth.com/news/temperatures-are-rising-unexpectedly-fast-on-the-tibetan-plateau/" target="_blank" rel="noreferrer noopener">Himalayas</a>, extending from India to the Tibetan Autonomous Region of China. It is renowned for its mesmerizing beauty and dramatic setting, with the lake lying at an elevation of about 4,350 meters.</p>



<p>One of the most distinctive features of Pangong Lake is its changing colors, ranging from shades of blue to green and even red, influenced by the sky's reflection and the lake's mineral content.</p>



<p>This saline water lake is approximately 134 kilometers long and 5 kilometers wide at its broadest point. Despite its considerable size, Pangong Lake is relatively shallow.&nbsp;</p>



<p>The lake gained additional popularity after being featured in several Indian films - most notably the Bollywood hit "3 Idiots." Its remote location requires a permit for visitors, especially due to its proximity to the Line of Actual Control between India and China.</p>



<p>Despite the geopolitical sensitivities surrounding its location, Pangong Lake remains a favorite among tourists for its unparalleled natural beauty and serene environment.</p>



<h2 class="wp-block-heading" id="h-high-altitude-lakes">High-altitude lakes</h2>



<p>High-altitude lakes are unique bodies of water found at elevations typically above 3,000 meters (about 10,000 feet) in mountain ranges like the <a href="https://www.earth.com/news/himalayan-glaciers-retreating-threat-is-much-worse-than-previously-believed/" target="_blank" rel="noreferrer noopener">Himalayas</a>, Andes, and Rockies. </p>



<p>These lakes are formed either by glacial activity, where glaciers erode the earth to create depressions that fill with melted snow and rainwater, or when natural dams created by landslides or moraines trap water in valleys.</p>



<h3 class="wp-block-heading" id="h-extreme-environments">Extreme environments</h3>



<p>The conditions at high altitudes make these lakes distinct in several ways. The climate is typically colder and harsher, with significant temperature variations between day and night. </p>



<p>This extreme environment affects both the physical characteristics of the <a href="https://www.earth.com/news/alarming-study-most-of-the-worlds-largest-lakes-are-quickly-losing-water/" target="_blank" rel="noreferrer noopener">lakes</a> and the types of ecosystems they support. For example, due to lower atmospheric pressure, the boiling point of water is reduced, which can affect the type of life that can survive in these regions.</p>



<h3 class="wp-block-heading" id="h-critical-habitats">Critical habitats</h3>



<p>Biologically, high-altitude lakes often have limited biodiversity because only certain types of plants and animals can tolerate the cold temperatures and lower oxygen levels in the water. </p>



<p>Despite this, these lakes are crucial habitats for some unique species of fish, birds, and other wildlife. They also serve as important indicators of climate change, as variations in their water levels and temperatures can reflect environmental shifts.</p>



<h3 class="wp-block-heading" id="h-significance-of-high-altitude-lakes">Significance of high-altitude lakes </h3>



<p>Lakes at high altitudes are often clear and pristine, due to the low density of human populations in these areas and minimal industrial activity, making them significant for ecological studies and attractive for tourism. </p>



<p>However, they are sensitive ecosystems, and increased tourist activity brings challenges like pollution and habitat disruption.</p>



<p>High-altitude lakes are not only beautiful and scientifically significant but also hold cultural importance for local communities, often considered sacred and associated with historical and spiritual significance.</p>



<p>Image Credit: NASA Earth Observatory&nbsp;</p>



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Pangong Lake on the Tibetan Plateau

Today's Image of the Day from NASA Earth Observatory features...

<p>Today's Image of the Day from NASA Earth Observatory features Ksudach, a remarkable volcanic complex located on Russia's Kamchatka Peninsula.</p>



<p>“The peninsula is one of the world’s most active volcanic arcs due to tectonic plate movement, with the Pacific Plate subducting under the Eurasian Plate,” noted <a href="https://earthobservatory.nasa.gov/images/153779/ksudachs-nested-calderas-and-craters" target="_blank" rel="noreferrer noopener">NASA</a>.</p>



<h2 class="wp-block-heading" id="h-explosive-eruptions-of-ksudach">Explosive eruptions of Ksudach</h2>



<p>Ksudach is classified as a shield <a href="https://www.earth.com/news/new-camera-helps-scientists-forecast-volcanic-eruptions/" target="_blank" rel="noreferrer noopener">volcano</a> due to the gentle slopes formed by its extensive lava flows. The combination of its shield-like structure and the prominent caldera system makes Ksudach a unique volcanic feature on the Kamchatka Peninsula.</p>



<p>“Several overlapping calderas and craters comprise the volcano. Calderas are large, bowl-shaped depressions created by the collapse of overlying material into an emptied subsurface magma chamber,” explained NASA.</p>



<p>“Craters are circular depressions created by volcanic activity, surface impacts, or explosions.”</p>



<p>This volcanic system has a fascinating geological history shaped by multiple explosive eruptions.&nbsp;</p>



<p>The most significant of these occurred around 240 AD, leaving behind a prominent caldera that now hosts scenic crater lakes, such as Lake Ksudach. </p>



<p>“Lakes within the volcanic region are primarily recharged by rain and snowmelt from the winter season. This photo shows the water’s contrasting blue hues surrounded by green vegetation,” noted NASA.</p>



<p>“Traces of snow fill valleys within and outside the volcano’s caldera complex. These snow-covered areas highlight the drainage patterns from higher to lower elevations. Water that flows through these erosional pathways and into the caldera supports its vegetation and lakes.”</p>



<h2 class="wp-block-heading" id="h-unique-landscape-of-ksudach-nbsp">Unique landscape of Ksudach&nbsp;</h2>



<p>Ksudach's landscape also features pyroclastic deposits, lava flows, and hydrothermal features like fumaroles.&nbsp;</p>



<p>The surrounding environment - which is part of the UNESCO-listed Kamchatka Volcanoes - supports a diverse ecosystem with unique wildlife. </p>



<p>Despite its remote location, Ksudach has drawn the attention of geologists, offering insights into <a href="https://www.earth.com/news/underwater-volcanic-eruptions-are-more-harmful-than-previously-believed/" target="_blank" rel="noreferrer noopener">volcanic processes</a> and the dynamics of caldera formation.</p>



<h2 class="wp-block-heading" id="h-dynamic-nature-of-earth-s-geology-nbsp">Dynamic nature of Earth's geology&nbsp;</h2>



<p>The most well-documented eruption of Ksudach occurred in March 1907. This eruption ranks as one of the largest in Kamchatka in the 20th century, with a Volcanic Explosivity Index (VEI) of 5.</p>



<p>The eruption produced a colossal ash column that soared into the stratosphere, dispersing fine particles over vast distances and contributing to global atmospheric changes.&nbsp;</p>



<p>The sheer force of the <a href="https://www.earth.com/news/icelands-volcanic-eruptions-may-continue-for-decades/" target="_blank" rel="noreferrer noopener">eruption</a> unleashed pyroclastic flows - fast-moving avalanches of hot gas, ash, and volcanic debris - that raced down the volcano's slopes, obliterating everything in their path.&nbsp;</p>



<p>These flows, capable of reaching temperatures over 1,000°C, decimated vegetation and altered the topography of the surrounding region.&nbsp;</p>



<p>Simultaneously, tephra deposits blanketed the landscape in layers of thick volcanic material, smothering ecosystems and creating a barren wasteland.&nbsp;</p>



<p>Today, Ksudach is considered an active <a href="https://www.earth.com/news/axial-seamount-large-underwater-volcano-off-us-coast-will-likely-erupt-in-2025/" target="_blank" rel="noreferrer noopener">volcano</a> but remains dormant. The region is closely monitored due to its potential for renewed <a href="https://www.earth.com/news/new-research-enhances-predictions-on-volcanic-eruptions/" target="_blank" rel="noreferrer noopener">activity</a>.</p>



<h2 class="wp-block-heading" id="h-pacific-ring-of-fire-nbsp">Pacific Ring of Fire&nbsp;</h2>



<p>The Kamchatka Peninsula lies along the Pacific Ring of Fire, a horseshoe-shaped zone encircling the Pacific Ocean where tectonic activity is highly concentrated.&nbsp;</p>



<p>This geologically dynamic area features numerous volcanoes, hot springs, geysers, and frequent seismic activity - making it a hotspot for both natural beauty and scientific study. </p>



<p>Kamchatka is home to over 160 volcanoes, with about 30 considered active, including Klyuchevskaya Sopka, the highest and one of the most active in the region.</p>



<h3 class="wp-block-heading" id="h-volcanic-activity-nbsp">Volcanic activity&nbsp;</h3>



<p>As the Pacific Plate dives into the Earth's mantle, it melts and generates magma that feeds Kamchatka’s volcanic systems.&nbsp;</p>



<p>This ongoing tectonic interaction also contributes to the broader activity of the Pacific Ring of Fire, which accounts for approximately 75% of the world's active and dormant <a href="https://www.earth.com/news/supervolcano-italy-solfatara-crater-phlegraean-fields-shows-signs-of-waking-up/" target="_blank" rel="noreferrer noopener">volcanoes</a> and about 90% of its earthquakes.</p>



<h3 class="wp-block-heading" id="h-broader-significance-nbsp">Broader significance&nbsp;</h3>



<p>Beyond its geological significance, the Kamchatka Peninsula boasts a diverse ecosystem that is home to animals such as snow sheep, brown bears, red foxes, and unique plants that are adapted to its harsh environment. </p>



<p>The coastal waters surrounding the peninsula support various fish species, including abundant salmon, as well as sea lions and killer whales.</p>



<p>The interplay of volcanic landscapes and pristine wilderness makes it a natural laboratory for understanding Earth's dynamic processes.</p>



<p>The image was captured by an astronaut aboard the International Space Station.</p>



<p>Image Credit: NASA Earth Observatory&nbsp;</p>



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Ksudach: A volcano shaped by explosive forces

<p>Today's <strong>Image of the Day</strong> from NASA Earth Observatory features an astronaut view of the Aladaghlar Mountains in northwestern Iran.</p>



<p>These <a href="https://www.earth.com/news/how-and-why-do-mountains-form-new-theories-for-an-age-old-mystery/" target="_blank" rel="noreferrer noopener">mountains</a> are known for their strikingly colorful landscapes, which make them stand out among other mountain ranges.</p>



<h2 class="wp-block-heading" id="h-landscape-of-the-aladaghlar-mountains">Landscape of the Aladaghlar Mountains</h2>



<p>"Ridges cast shadows in the valleys and other low elevation areas, creating a three-dimensional appearance. Human alterations to the landscape are most evident in riverbeds, where the even topography is easier to build on and navigate," said <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA</a>.</p>



<p>"Natural processes over millions of years have folded rock layers of various compositions and colors into the curved patterns seen here. These folds are produced by tectonic forces operating along the convergent plate boundary of the Arabia and Eurasia plates." </p>



<h2 class="wp-block-heading" id="h-the-rainbow-mountains">The Rainbow Mountains</h2>



<p>One of the most remarkable features of the Aladaghlar Mountains is the vivid coloration of their slopes. </p>



<p>The name "Aladaghlar" translates to "colorful mountains," which is a testament to their unique appearance.&nbsp;They are also known as the Rainbow Mountains.</p>



<h2 class="wp-block-heading" id="h-wildlife-of-the-aladaghlar-mountains">Wildlife of the Aladaghlar Mountains </h2>



<p>The Aladaghlar Mountains are part of a larger <a href="https://www.earth.com/news/mountain-ecosystems-are-in-urgent-need-of-protection/" target="_blank" rel="noreferrer noopener">ecosystem</a> that includes forests, meadows, and rivers, contributing to a rich biodiversity. </p>



<p>The region supports a variety of wildlife, including several species that are unique to the area. The diverse wildlife add to the natural beauty and ecological importance of these <a href="https://www.earth.com/news/how-and-why-do-mountains-form-new-theories-for-an-age-old-mystery/" target="_blank" rel="noreferrer noopener">mountains</a>.</p>



<p>Among the larger mammals, the mountains host species such as brown bears, Persian leopards, and wild goats. The Aladaghlar Mountains also support smaller mammals, including foxes, hares, and various rodent species.&nbsp;</p>



<p><a href="https://www.earth.com/news/how-mountains-influence-bird-evolution/" target="_blank" rel="noreferrer noopener">Birdlife</a> is abundant, including eagles, falcons, and a variety of songbirds. Reptiles like lizards and snakes are commonly found in the more humid areas, as well as amphibians.&nbsp;</p>



<h2 class="wp-block-heading" id="h-cultural-significance-of-the-region">Cultural significance of the region</h2>



<p>In addition to their natural appeal, the Aladaghlar Mountains hold cultural significance. The region has a rich history, with evidence of ancient civilizations and historical sites. </p>



<p>Local communities have their unique cultures and traditions, which have been influenced by the natural environment of the mountains.</p>



<h2 class="wp-block-heading" id="h-geology-of-the-aladaghlar-mountains-nbsp">Geology of the Aladaghlar Mountains&nbsp;</h2>



<p>The geological history of these <a href="https://www.earth.com/news/mountains-both-carbon-sinks-and-carbon-sources/" target="_blank" rel="noreferrer noopener">mountains</a> is a fascinating tale of millions of years of natural processes.</p>



<p>The Aladaghlar Mountains are primarily composed of sedimentary rocks that have accumulated over millions of years. These sediments include sandstones, siltstones, shales, and conglomerates.</p>



<h3 class="wp-block-heading" id="h-mineral-deposition-nbsp">Mineral deposition&nbsp;</h3>



<p>The varying colors of the Aladaghlar Mountains are largely due to the presence of different minerals in the sedimentary layers. For example, red and orange hues are typically due to iron oxides, while greens can result from copper compounds.</p>



<p>These minerals were deposited in the sedimentary rocks through processes such as chemical precipitation, biological activity, and the weathering of parent rocks.</p>



<h3 class="wp-block-heading" id="h-tectonic-activity">Tectonic activity</h3>



<p>The region has experienced significant tectonic activity due to its location near the convergent boundary between the Arabian and Eurasian plates. This tectonic activity has caused the uplift and folding of the sedimentary layers, creating the mountain range.</p>



<p>The compression and folding associated with tectonic movements have also contributed to the exposure of the colorful strata that were originally deposited horizontally.</p>



<h3 class="wp-block-heading" id="h-erosion-and-weathering">Erosion and weathering</h3>



<p>Over time, erosion and weathering processes have played a crucial role in shaping the Aladaghlar Mountains. </p>



<p>Wind, water, and temperature variations have eroded the softer rock layers more quickly than the harder ones, creating the distinctive ridges and valleys seen today.</p>



<p>These erosive processes have also helped to expose the underlying layers, revealing the vibrant colors and intricate patterns that attract tourists and geologists alike.</p>



<h2 class="wp-block-heading">Tales and legends</h2>



<p>One of the most famous tales associated with the Aladaghlar Mountains is that of a hidden treasure buried deep within the mountains by an ancient Persian king.&nbsp;</p>



<p>According to legend, the treasure is guarded by mystical creatures and can only be found by someone pure of heart and brave enough to face the challenges of the mountain.</p>



<h3 class="wp-block-heading">The shepherd and the fairy</h3>



<p>Another local legend tells the story of a young shepherd who fell in love with a fairy he encountered in the Aladaghlar Mountains. The fairy granted the shepherd three wishes, but warned him that the wishes would come with consequences.&nbsp;</p>



<p>Despite the warning, the shepherd made his wishes, which ultimately led to his downfall, serving as a cautionary tale about the dangers of greed.</p>



<h3 class="wp-block-heading">The healing springs</h3>



<p>The Aladaghlar Mountains are also said to be home to a spring with magical healing properties. According to folklore, those who bathe in the spring or drink its water are cured of all ailments.&nbsp;</p>



<p>However, the location of the spring is a closely guarded secret, known only to a few wise elders in the nearby villages.</p>



<h3 class="wp-block-heading">The spirit of the mountain&nbsp;</h3>



<p>Some locals believe that the Aladaghlar Mountains are inhabited by a protective spirit, who watches over the land and its people.&nbsp;</p>



<p>This spirit is said to bring good fortune to those who respect the mountain and its natural beauty, but misfortune to those who exploit or harm it.</p>



<p>Image Credit: NASA Earth Observatory&nbsp;</p>



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The Aladaghlar Mountains of northwestern Iran

<p>Out of all the planets in our solar system beyond Earth, most consider Saturn's beauty to be the most spectacular, with a set of rings that have inspired curiosity for hundreds of years. </p>



<p>In the 17th century, Italian astronomer Galileo Galilei described this distant world as having "ears," showing how limited his view was at the time. </p>



<p>Even with basic tools, he sensed something unusual about the planet’s appearance, although he could not fully explain it.</p>



<h2 class="wp-block-heading" id="h-saturn-s-rings-steal-the-show">Saturn's rings steal the show</h2>



<p>Modern telescopes and worldwide observatories have transformed our <a href="https://www.earth.com/news/massive-energy-imbalance-discovered-on-saturn/" target="_blank" rel="noreferrer noopener">understanding of Saturn</a>. They reveal swirling collections of ice and rocks orbiting the massive planet in broad arcs that we call rings. </p>



<p>These ribbons of debris are more than a mere celestial decoration for us humans to admire; they shed light on the gravitational forces at work in our solar system.</p>



<p>By studying Saturn's rings, astronomers gain a better understanding of how cosmic particles behave when bound by gravity, and why their appearance changes when viewed from Earth. </p>



<p>Jonah Peter, a doctoral student at Harvard-Smithsonian Center for Astrophysics (<a href="https://www.cfa.harvard.edu/" target="_blank" rel="noreferrer noopener">CfA</a>), has focused on how Saturn’s moons affect the <a href="https://www.earth.com/news/new-image-of-saturn-and-its-ring-spokes-from-the-hubble-space-telescope/" target="_blank" rel="noreferrer noopener">ring environment</a>.</p>



<p>His work connects the motions of this ring material to the broader story of our cosmic neighborhood, all of which is driven by a process known as orbital mechanics, or celestial mechanics. </p>



<h2 class="wp-block-heading" id="h-understanding-orbital-mechanics-the-basics">Understanding orbital mechanics - the basics</h2>



<p>Orbital mechanics describes how bodies move under the pull of gravity. Planets circle the Sun, moons circle planets, and satellites stay in orbit around Earth. </p>



<p>These paths depend on factors like velocity and orbital shape, all of which keep objects traveling in predictable loops.</p>



<p>Saturn’s tilt plays a role in how we see the rings. As the planet continues on its journey, our viewpoint changes over time. </p>



<p>In some phases, the rings show off their full width. In others, they line up edge-on, turning into a thin band that seems ready to vanish.</p>



<h2 class="wp-block-heading" id="h-how-saturn-s-rings-will-disappear">How Saturn's rings will disappear</h2>



<p>A striking event called a "ring plane crossing" will occur on March 23, 2025. The rings will appear to have completely vanished because their thin edges will be aimed at Earth. </p>



<p>This alignment happens when Saturn’s tilt and location match up so that we no longer see the bright swath of particles head-on.<br><br>Once the rings vanish from easy sight in March 2025, Saturn will look like a pale yellow sphere through most telescopes. A subtle line may be visible around the planet’s middle, but only through the most powerful telescopes.</p>



<figure class="wp-block-image aligncenter size-full"><a href="https://www.earth.com/wp-content/uploads/2025/01/saturn_rings_viewed-from-earth_orbital-mechanics_nasa_1m.jpg" target="_blank" rel="noreferrer noopener"><img src="https://www.earth.com/wp-content/uploads/2025/01/saturn_rings_viewed-from-earth_orbital-mechanics_nasa_1s.webp" alt="Rings A, B, C. You notice a large gap between the A and B rings. This is called the &quot;Cassini division&quot;. (See attached picture, where I've labeled the A, B, and C rings, along with the Cassini division.) There are other gaps in the rings at other places, but this one is the largest. the Cassini division (Hubble Space Telescope picture). Credit: NASA" class="wp-image-1956187"/></a><figcaption class="wp-element-caption"><em>Rings A, B, C. You notice a large gap between the A and B rings. This is called the "Cassini division". (See attached picture, where I've labeled the A, B, and C rings, along with the Cassini division.) There are other gaps in the rings at other places, but this one is the largest. the Cassini division (Hubble Space Telescope picture). Credit: NASA</em></figcaption></figure>



<p>Some enthusiasts might miss the typical glow, yet there is a certain thrill in waiting for that grand display to reappear.</p>



<p>As Earth and Saturn shift positions, the rings will come back into full view around November 2025. The planet’s looping debris will stand out again, along with glimpses of its many moons. </p>



<p><a href="https://www.earth.com/news/megastorms-on-saturn-are-larger-than-the-earth-and-last-for-hundreds-of-years/" target="_blank" rel="noreferrer noopener">This recurring pattern</a> reminds observers that our perspective can change, even when Saturn itself remains the same majestic world it has always been.</p>



<h2 class="wp-block-heading" id="h-composition-and-structure-of-saturn-s-rings">Composition and structure of Saturn's rings</h2>



<p>The rings are <a href="https://www.earth.com/news/saturns-rings-may-have-formed-after-two-icy-moons-collided/" target="_blank" rel="noreferrer noopener">divided into sections</a> called the A, B, and C rings, plus a few fainter ones labeled D, E, F, and G. Between the A and B rings lies the Cassini Division, measuring around 2,982 miles wide. </p>



<p>Scientists note that spaces like this can form when orbital motions and gravitational tugs clear out certain pathways.</p>



<p>These rings are not solid sheets. They're made of pieces that range from dust-size grains to lumps as large as buses. </p>



<p>Some researchers think the rings sprang from a moon ripped apart by Saturn’s gravity. Others propose that leftover material from the planet’s formation helped craft <a href="https://www.earth.com/news/we-now-know-the-age-of-saturns-rings-and-the-number-might-surprise-you/" target="_blank" rel="noreferrer noopener">these looping bands</a> more than four billion years ago.</p>



<h2 class="wp-block-heading" id="h-moons-and-their-gravitational-pull">Moons and their gravitational pull</h2>



<p>Saturn hosts <a href="https://www.earth.com/news/saturn-now-leads-the-solar-system-moon-race-with-145/" target="_blank" rel="noreferrer noopener">at least 145 moons</a>. Some are called shepherd moons, and they drift near the ring edges. </p>



<p>Their gravity holds ring particles in place, preventing them from scattering too far in one direction or another. This process helps the rings maintain their recognizable gaps and bands.</p>



<p>Beyond those shepherds, Saturn’s system includes larger bodies that have unique properties. <a href="https://www.earth.com/news/saturns-moon-titan-has-shorelines-shaped-by-waves/" target="_blank" rel="noreferrer noopener">The biggest, Titan</a>, is a place of ongoing study. It has an atmosphere mostly made of nitrogen. </p>



<p>Scientists have also measured a magnetic field around Titan that, while weaker than Jupiter’s, surpasses Earth’s field in relative strength.</p>



<h2 class="wp-block-heading" id="h-titan-and-the-dragonfly">Titan and the Dragonfly</h2>



<p><a href="https://www.earth.com/news/dragonfly-space-mission-saturn-moon-titan-gets-greenlight/" target="_blank" rel="noreferrer noopener">NASA’s Dragonfly mission</a> plans to send an exploratory craft to Titan. Researchers are keen to learn more about its lakes of liquid hydrocarbons and the thick orange haze that hides much of its surface. </p>



<p>These features hint at a landscape shaped by chemistry unlike anything on our planet.</p>



<p>Radio signals from Titan indicate bright auroras at the poles. These signals prove that electric and magnetic forces act in that moon’s environment. </p>



<p>This unusual blend of ingredients prompts questions about how life might appear elsewhere, if it appears at all.</p>



<h2 class="wp-block-heading" id="h-enceladus-may-harbor-life">Enceladus may harbor life</h2>



<p><a href="https://www.earth.com/news/life-on-saturns-moon-enceladus-massive-water-plume-has-scientists-wondering/" target="_blank" rel="noreferrer noopener">Enceladus</a>, another of Saturn’s moons, has drawn attention because of icy plumes venting from near its south pole. </p>



<p>Observations from the Cassini mission revealed water vapor and possible chemical building blocks for living organisms. </p>



<p>That discovery turned Enceladus into a point of interest for people searching for life in the solar system.</p>



<p>"Not only does Enceladus seem to meet the basic <a href="https://www.earth.com/news/life-sparking-energy-source-found-on-saturns-moon-enceladus/" target="_blank" rel="noreferrer noopener">requirements for habitability</a>, we now have an idea about how complex biomolecules could form there, and what sort of chemical pathways might be involved," explains Jonah Peter. These findings stir hope about discovering microbial life beyond Earth.</p>



<h2 class="wp-block-heading" id="h-saturn-s-mystery-and-majesty">Saturn's mystery and majesty</h2>



<p>Galileo’s old remark about Saturn’s "ears" underscores how far we have come. Early astronomers had limited tools, yet they still glimpsed something remarkable. </p>



<p>Modern instruments add detail, but the sense of wonder remains. Saturn shows how our solar system is filled with surprises that motivate fresh discoveries.</p>



<p>As amateurs and experts keep pointing their lenses skyward, they continue to find reasons to appreciate this planet’s evolving appearance. </p>



<p>The rings may fade from view temporarily, but people know they will return. Each phase allows us to learn a little more about how cosmic objects behave and how life might emerge under new conditions.</p>



<p>The full study was published in the journal <em><a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023JE008236" target="_blank" rel="noreferrer noopener">JGR Planets</a></em>.</p>



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Saturn's majestic rings will vanish in just three months from now

Out of all the planets in our solar system beyond...

<p>The humble carrot may be more powerful than we realized. Beyond its culinary versatility, this nutrient-rich root vegetable is gaining attention for its potential health benefits. Recent research suggests that carrots could play a significant role in the fight against type 2 diabetes.</p>



<p>The study was conducted by a team of experts from the <a href="https://www.sdu.dk/en" target="_blank" rel="noreferrer noopener">University of Southern Denmark</a> (SDU), Odense University Hospital, and the University of Copenhagen. </p>



<p>The researchers found that carrots boost the body's regulation of blood sugar levels and have a beneficial influence on gut bacteria.</p>



<h2 class="wp-block-heading" id="h-what-is-type-2-diabetes">What is type 2 diabetes?</h2>



<p>Type 2 diabetes is a widespread and growing public health concern, impacting millions of people worldwide. </p>



<p>Characterized by the body’s inability to effectively use insulin, this chronic condition can lead to serious complications including heart disease, kidney damage, nerve issues, and vision loss.</p>



<p>The prevalence of type 2 diabetes has been steadily rising, fueled by factors such as sedentary lifestyles, unhealthy diets, and increasing rates of obesity. </p>



<h2 class="wp-block-heading" id="h-more-than-just-a-snack-food">More than just a snack food </h2>



<p>According to the World Health Organization, the number of people living with diabetes has nearly quadrupled over the past few decades - highlighting the urgent need for effective prevention, management, and treatment strategies.</p>



<p>Current treatments for type 2 diabetes involve dietary changes and drugs, which can be quite irritating. </p>



<p>The researchers propose that carrots, which are rich in bioactive compounds, may offer a natural way to complement existing treatments.</p>



<h2 class="wp-block-heading" id="h-bioactive-compounds-in-carrots">Bioactive compounds in carrots </h2>



<p>To test their theory, the scientists placed laboratory mice with type 2 diabetes in two groups for a period of 16 weeks.</p>



<p>One group was fed a high fat diet that was supplemented with 10% freeze-dried powder of carrots, while the other group did not receive carrots in their diets.</p>



<p>The team found that mice on the carrot-enriched diet developed better regulation of blood sugar and a healthier gut microbiome.</p>



<p>The experts concluded that it was the bioactive compounds in carrots, such as short-chain fatty acid-promoting agents, which led to these improvements.</p>



<p>"Carrots altered the composition of the gut microbiome - the billions of microorganisms living in the gut that play a crucial role in digestion and health. Mice consuming carrots exhibited a healthier balance of gut bacteria," noted Morten Kobæk Larsen, who coordinated the research project.</p>



<h2 class="wp-block-heading" id="h-carrots-and-gut-bacteria">Carrots and gut bacteria</h2>



<p>The mice that were fed carrots had more bacteria that ferment short-chain fatty acids (SCFAs), which are small molecules produced when bacterial populations ferment dietary fibers.</p>



<p>These molecules are crucial for regulating energy metabolism and blood sugar. They play a crucial role in helping maintain homeostasis of the gut microbiota and reducing inflammation.</p>



<p>"Everything we eat affects the composition of gut bacteria. Consuming carrots shifts the gut bacteria towards a healthier balance, benefiting mice with type 2 diabetes," explained Larsen.</p>



<h2 class="wp-block-heading" id="h-dietary-strategies-for-type-2-diabetes">Dietary strategies for type 2 diabetes</h2>



<p>Carrots contain bioactive substances derived from unsaturated fatty acids that enhance cells' ability to absorb sugar, aiding in blood sugar regulation and overall metabolic health. </p>



<p>Other vegetables such as parsley, celery, and parsnips contain similar compounds.</p>



<p>"We see carrots as a potential component of future dietary strategies for type 2 diabetes. Other vegetables in the carrot family might have similar properties," said Lars Porskjær Christensen, a professor of analytical chemistry and natural product chemistry at SDU.</p>



<h2 class="wp-block-heading" id="h-future-research-directions">Future research directions</h2>



<p>While the research is promising, it has not been directly applied to humans. The experts believe the next step is to conduct human clinical trials.</p>



<p>"Such studies are costly, and we are working to secure external funding to conduct a smaller clinical trial with carrots containing relatively high amounts of bioactive compounds," said Christensen.</p>



<p>The researchers hope that this could pave the way for larger clinical studies to help provide preventative measures against type 2 diabetes.</p>



<p>Of course, preparation does play a part in retaining the health-promoting substances found in carrots.</p>



<p>"Even with prolonged frying or boiling, some bioactive compounds remain. However, raw or lightly cooked carrots seem to be the best option to retain as many beneficial compounds as possible," concluded Christensen.</p>



<p>The full study was published in the journal <em><a href="https://ascpt.onlinelibrary.wiley.com/doi/10.1111/cts.70090" target="_blank" rel="noreferrer noopener">Clinical and Translational Science</a></em>.</p>



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Carrots may help manage diabetes by improving gut health

The humble carrot may be more powerful than we realized....

<p>Have you ever found yourself in a heated discussion with someone of the opposite sex and thought - "it's like we're wired differently"? Well, a recent study from the University of Cambridge suggests that male and female brains are indeed wired differently from the time of birth.</p>



<p>This study, one of the largest of its kind, analyzed the brain anatomy of more than 500 newborns using advanced imaging techniques.</p>



<h2 class="wp-block-heading" id="h-difference-in-male-and-female-brains">Difference in male and female brains</h2>



<p>The findings reveal distinct <a href="https://www.earth.com/news/mens-brains-shrink-in-the-evening-and-reset-overnight/" target="_blank" rel="noreferrer noopener">differences in brain structure</a> between male and female infants in both the grey and white matter regions.</p>



<h3 class="wp-block-heading" id="h-grey-matter">Grey matter</h3>



<p>Female newborns typically have more grey matter in their brains. Grey matter is found in the outermost layer of the brain, known as the cortex. </p>



<p>This tissue is essential for key mental functions including memory processing, emotional regulation, and interpreting information.</p>



<p>This could explain why females often excel in recalling memories and displaying emotional awareness, even from a young age.</p>



<h3 class="wp-block-heading" id="h-white-matter">White matter</h3>



<p>Male newborns generally have more white matter in their <a href="https://www.earth.com/news/ai-reveals-the-secret-to-keeping-your-brain-young/" target="_blank" rel="noreferrer noopener">brains</a>. White matter consists of neural pathways that connect different brain regions, creating a network for fast communication. </p>



<p>It serves as the brain’s "superhighway," and supports semsory processing and motor control.</p>



<p>These differences may contribute to males having stronger spatial awareness and better physical coordination early in life.</p>



<h2 class="wp-block-heading" id="h-nature-and-nurture-in-brain-development">Nature and nurture in brain development</h2>



<p>The study indicates that these differences likely originate during prenatal <a href="https://www.earth.com/news/first-complete-map-of-every-neuron-in-the-brain-revealed/" target="_blank" rel="noreferrer noopener">brain development</a> and may become more pronounced as environmental factors interact with biological wiring.</p>



<p>“Because these sex differences are evident so soon after birth, they might in part reflect biological sex differences during prenatal brain development,” explained study lead author Yumnah Khan.</p>



<p>“We took additional factors into account, such as birth weight, to ensure that these differences are specific to the brain and not due to general size differences between the sexes,” added co-author Dr. Alex Tsompanidis.</p>



<h2 class="wp-block-heading" id="h-implications-for-neurodiversity">Implications for neurodiversity</h2>



<p>Professor Simon Baron-Cohen, a co-author of the study, emphasized that the findings do not imply superiority of one sex’s brain over the other.</p>



<p>Instead, they shed light on neurodiversity - the concept that different <a href="https://www.earth.com/news/how-does-the-brain-process-experiences-over-time/" target="_blank" rel="noreferrer noopener">brain structures</a> and functions can lead to diverse strengths and ways of thinking.</p>



<p>Professor Baron-Cohen highlights the potential implications of these findings for understanding conditions like autism, which is more frequently diagnosed in males.</p>



<p>The study's insights into sex-based brain differences may help researchers better understand how neurodevelopmental conditions emerge and why they may differ between sexes.</p>



<h2 class="wp-block-heading" id="h-extreme-male-brain-theory">Extreme male brain theory</h2>



<p>In his "extreme male brain theory," Professor Baron-Cohen proposed that males tend to excel at systemizing, which involves identifying patterns, understanding rules, and solving logical problems.</p>



<p>In contrast, females are generally better at&nbsp;empathizing, which includes understanding and responding to the emotions and perspectives of others. </p>



<p>This study aligns with the idea that these differences are rooted in biology, but the real-world implications remain intricate and influenced by numerous factors, including environment and experience.</p>



<p>The study reinforces the idea that male and female <a href="https://www.earth.com/news/how-does-cannabis-use-affect-brain-structure/" target="_blank" rel="noreferrer noopener">brains</a> are distinct but equally valuable. These differences contribute to a broader understanding of human neurodiversity, and help researchers explore conditions like autism and the varied ways in which brains function across sexes.</p>



<h2 class="wp-block-heading" id="h-the-debate-continues">The debate continues</h2>



<p>Not all researchers agree on the significance of brain differences between sexes. </p>



<p>A 2021 study by researchers at <a href="https://www.rosalindfranklin.edu" target="_blank" rel="noreferrer noopener">Rosalind Franklin University</a> found that brain structure variations between men and women were negligible when adjusting for size.</p>



<p>A 2013 <a href="https://www.upenn.edu" target="_blank" rel="noreferrer noopener">University of Pennsylvania</a> study noted “striking” differences in neural wiring, while a 2017 study suggested women’s brains are more active - particularly in areas tied to focus and impulse control.</p>



<h2 class="wp-block-heading" id="h-male-and-female-brains-are-distinct">Male and female brains are distinct</h2>



<p>While this study confirms sex-based brain differences from birth, it also reignites the debate over their relevance in adulthood. </p>



<p>The findings highlight the interplay between biology and environment that shapes the way we think, feel, and interact. As researchers continue to explore this topic, one thing is clear: male and female brains are distinct, but equal in complexity and capability.</p>



<p>"These differences do not imply the brains of males and females are better or worse," said Professor Baron-Cohen. They are simply different, and this adds richness to human diversity.</p>



<p>The study is published in the journal <em><a class="" href="http://dx.doi.org/10.1186/s13293-024-00657-5" target="_blank" rel="noreferrer noopener">Biology of Sex Differences</a>.</em></p>



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Male and female brains truly are wired completely differently

Have you ever found yourself in a heated discussion with...

<p></p>
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<p><br />
<span style="font-weight: 400;">Today&#8217;s </span><b>Video of the Day</b><span style="font-weight: 400;"> from the </span><a href="https://www.acs.org/"><span style="font-weight: 400;">American Chemical Society</span></a><span style="font-weight: 400;"> series </span><i><span style="font-weight: 400;">Reactions </span></i><span style="font-weight: 400;">describes the science that makes various teas different. </span></p>
<p><span style="font-weight: 400;">Even though white, green, oolong, and black teas all come from the same plant, chemical changes that happen in the leaves during production give each of these teas their distinctive appearance and flavor. </span></p>
<p><span style="font-weight: 400;">&#8212;</span></p>
<p><i><span style="font-weight: 400;">By </span></i><a href="http://csexton@earth.com"><i><span style="font-weight: 400;">Chrissy Sexton</span></i></a><i><span style="font-weight: 400;">, </span></i><a href="https://www.earth.com/staff/"><i><span style="font-weight: 400;">Earth.com</span></i></a><i><span style="font-weight: 400;"> Staff Writer</span></i></p>
<p><i><span style="font-weight: 400;">Video Credit: NASA Earth Observatory</span></i></p>

The chemistry behind varieties of tea