<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>A study from Chapman University provides the first comprehensive global estimates of water storage in Earth’s vegetation and the time it takes for that water to flow through plants. The research fills a critical gap in our understanding of the global water cycle and its sensitivity to climate and land-use changes.</p>



<p>Published in the journal <em>Nature Water</em>, the study reveals that Earth's vegetation holds about 786 km³ of water, a mere 0.002% of Earth’s total freshwater.</p>



<p>However, the significance lies in the rapid movement of water through plants. This transit time, from absorption to release into the atmosphere, is among the fastest in the water cycle - ranging from five days in croplands to 18 days in evergreen needleleaf forests.</p>



<p>For perspective, water in lakes takes around 17 years to cycle, and in glaciers, the process spans 1,600 years.</p>



<h2 class="wp-block-heading" id="h-continuous-loop-of-earth-s-water-cycle">Continuous loop of Earth's water cycle</h2>



<p>Earth's water cycle, or <a href="https://www.earth.com/earthpedia-articles/water-cycle/" target="_blank" rel="noreferrer noopener">hydrological cycle</a>, is the continuous movement of water through the environment. It begins with evaporation, where the <a href="https://www.earth.com/news/rising-temperatures-are-wreaking-havoc-on-the-global-water-cycle/" target="_blank" rel="noreferrer noopener">sun heats water</a> from oceans, lakes, and rivers, turning it into vapor.</p>



<p>This vapor rises into the atmosphere and cools, leading to&nbsp;condensation, which forms clouds. When the clouds become heavy, water returns to Earth as&nbsp;precipitation&nbsp;in the form of rain, snow, or hail. </p>



<p>Once on the ground, water either flows over the surface into rivers and lakes (runoff) or seeps into the soil (infiltration). </p>



<p>Plants also play a role by releasing water vapor into the air through&nbsp;transpiration. Together, these processes recycle water, connecting oceans, land, and the atmosphere in a continuous loop.</p>



<h2 class="wp-block-heading" id="h-a-forgotten-element-of-the-water-cycle">A forgotten element of the water cycle</h2>



<p>“Plants are the forgotten part of the global water cycle,” noted Dr. Andrew Felton, lead author and professor at <a href="https://www.montana.edu" target="_blank" rel="noreferrer noopener">Montana State University</a>. Despite their critical role in returning water from the ground to the atmosphere, plants are often excluded from water cycle diagrams.</p>



<p>“Our results show that the transit of water through plants occurs on the order of days, rather than months, years, or centuries, as it does in other parts of the water cycle,” said Dr. Felton.</p>



<p>By combining plant water transit estimates with those for the atmosphere (8–10 days) and soil (60–90 days), researchers can now approximate the total time a drop of water spends in the terrestrial cycle.</p>



<h2 class="wp-block-heading" id="h-intensification-of-the-water-cycle">Intensification of the water cycle</h2>



<p>One striking finding is the rapid transit of water through croplands. During peak growing seasons, water cycles through crops in less than a day. This speed, consistent across global croplands, hints at a broader environmental implication.</p>



<p>“Land use change may be homogenizing the global water cycle and contributing to its intensification by more rapidly recycling water back to the atmosphere where it can turn into heavy rain events,” explained <a href="https://www.chapman.edu/our-faculty/greg-goldsmith" target="_blank" rel="noreferrer noopener">Dr. Gregory Goldsmith</a>, senior author and associate professor at Chapman University.</p>



<h2 class="wp-block-heading" id="h-water-dynamics-in-earth-s-vegetation">Water dynamics in Earth's vegetation</h2>



<p>The research team utilized data from NASA’s Soil Moisture Active Passive Mission (<a href="https://smap.jpl.nasa.gov" target="_blank" rel="noreferrer noopener">SMAP</a>), a satellite program designed to measure soil moisture across Earth’s surface.</p>



<p>SMAP data accounted for vegetation interference, which the satellite originally treated as noise to correct soil moisture readings. However, the researchers discovered that these corrections held important information about the amount of water stored in plants.</p>



<p>By analyzing this overlooked data and combining it with advanced measurements of how quickly water exits plants, the team developed detailed estimates. </p>



<p>These included five years of monthly data on plant water storage and the time water takes to move through vegetation, calculated with a spatial resolution of&nbsp;9 square kilometers (approximately 3.5 square miles). </p>



<p>This high-resolution analysis provided a remarkable understanding of <a href="https://www.earth.com/news/distress-signals-earths-water-cycle-is-becoming-more-erratic/" target="_blank" rel="noreferrer noopener">water dynamics within Earth's vegetation</a>.</p>



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



<p>The study highlights the sensitivity of plant water transit times to environmental events like deforestation, drought, and wildfires. </p>



<p>“The results suggest that the transit time of water through plants is likely to be very sensitive to events such as deforestation, drought and wildfire, which will fundamentally change the time it takes for water to flow through the water cycle,” said Felton.</p>



<p>By shedding light on the dynamic role of vegetation, this research highlights the interconnectedness of ecosystems and the urgent need to understand how land-use changes influence the global water cycle.</p>



<p>As the planet faces intensifying climate challenges, studies like this pave the way for more informed strategies to manage water resources and <a href="https://www.earth.com/news/sci-fi-inspired-scenarios-illustrate-our-impact-on-earths-water-cycle/" target="_blank" rel="noreferrer noopener">predict environmental shifts</a>.</p>



<p>The study is published in the journal <em><a href="https://www.nature.com/articles/s44221-024-00365-9" target="_blank" rel="noreferrer noopener">Nature Water</a>.</em></p>



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Water moves through plants and back into the atmosphere with unexpected speed

A study from Chapman University provides the first comprehensive global...

<p>Every day, countless cups of coffee leave behind piles of waste and grounds that often end up in landfills. People around the globe are seeking ways to reduce this organic trash, and construction researchers have identified a method that may give old coffee grounds a second life.</p>



<p>By finding innovative solutions, they are turning waste into a tool for advancing sustainability across industries, addressing the issue of waste management, and offering benefits to industries beyond the <a href="https://www.earth.com/news/coffee-production-threatened-by-loss-of-pollinators/" target="_blank" rel="noreferrer noopener">coffee sector</a>.</p>



<p>By reimagining a common byproduct, scientists are opening doors to more sustainable and practical applications for organic waste, thereby transforming a problem into a valuable resource, which could redefine how organic waste is utilized.</p>



<h2 class="wp-block-heading" id="h-turning-coffee-grounds-into-stronger-concrete">Turning coffee grounds into stronger concrete</h2>



<p>RMIT University engineer <a href="https://www.rmit.edu.au/profiles/r/rajeev-roychand" target="_blank" rel="noreferrer noopener">Dr. Rajeev Roychand</a> and his colleagues have demonstrated that processing leftover coffee grounds can make concrete significantly stronger.&nbsp;</p>



<p>To unlock these benefits, researchers placed coffee waste in a low-oxygen environment and heated it to over 350 °F (about 660 °F). This heating method, called pyrolysis, changes the grounds into a carbon-rich material.</p>



<p>The treatment alters the coffee grounds at a molecular level, transforming them into a material that integrates well with concrete. More importantly, it enables the production of stronger concrete with reduced environmental impacts.</p>



<h2 class="wp-block-heading" id="h-why-pyrolysis-is-key">Why pyrolysis is key</h2>



<p>Pyrolysis involves heating organic matter in the absence of oxygen. When coffee waste is treated with this process at 350 °C, it transforms into a substance known as biochar, which carries the advantage of being able to bond effectively with cement.</p>



<p>In general, the construction industry has long faced challenges with resource consumption, particularly related to sand extraction. </p>



<p>Using biochar derived from coffee can replace a portion of the sand that goes into concrete, thus lowering demand for natural sand.</p>



<p>This process not only lessens dependency on finite resources but also aligns with the growing push for sustainable construction practices. </p>



<p>The pyrolyzed <a href="https://www.earth.com/news/coffee-flavor-can-be-improved-with-a-simple-trick/" target="_blank" rel="noreferrer noopener">coffee</a> biochar creates a porous structure that improves the way concrete holds together under stress. </p>



<p>This method provides a dual benefit: finding a productive use for waste while simultaneously addressing the ecological impacts of sand extraction.</p>



<h2 class="wp-block-heading" id="h-reducing-organic-waste-and-emissions">Reducing organic waste and emissions</h2>



<p>Experts <a href="https://ico.org/resources/trade-statistics-tables/" target="_blank" rel="noreferrer noopener">estimate</a> that global coffee consumption generates around 10 billion kilograms (22 billion pounds) of spent grounds each year. Much of this waste takes up precious space in landfills, while also releasing methane and carbon dioxide.&nbsp;</p>



<p>Methane is considered to be a more harmful greenhouse gas than carbon dioxide over a 100-year period. Hence, diverting this waste toward sustainable uses could significantly reduce greenhouse gas emissions. </p>



<p>Ultimately, with coffee consumption so widespread, even small changes in recycling practices could have far-reaching effects on the environment.</p>



<p>“The disposal of organic waste poses an environmental challenge as it emits large amounts of greenhouse gases,” said <a href="https://www.sciencedirect.com/science/article/pii/S0959652623023636" target="_blank" rel="noreferrer noopener">Roychand</a>. By recycling coffee grounds, researchers hope to mitigate these environmental impacts while improving concrete’s quality.</p>



<h2 class="wp-block-heading" id="h-indigenous-perspective-on-sustainability">Indigenous perspective on sustainability</h2>



<p>“Inspiration for my research, from an Indigenous perspective, involves Caring for Country,” said RMIT engineer and co-researcher <a href="https://www.rmit.edu.au/news/all-news/2022/august/indigenous-researcher-ppe-innovation" target="_blank" rel="noreferrer noopener">Dr. Shannon Kilmartin-Lynch</a>.</p>



<p>Sustainable practices that keep organic waste from landfills can protect ecosystems, minimize pollution, and preserve natural resources. </p>



<p>This philosophy integrates cultural respect for the environment with cutting-edge engineering techniques. Using coffee biochar in construction aligns with this idea of managing resources more responsibly.</p>



<h2 class="wp-block-heading" id="h-will-this-really-work">Will this really work?</h2>



<p>The coffee-biochar blend requires further testing to confirm its performance over extended periods. Scientists want to know how it stands up to water exposure, freeze-and-thaw cycles, and constant use.</p>



<p>These durability tests will help determine whether biochar-infused <a href="https://www.earth.com/news/recycled-cement-is-an-absolute-miracle-to-lower-concrete-emissions/" target="_blank" rel="noreferrer noopener">concrete</a> can meet the rigorous demands of modern infrastructure projects.</p>



<p>They are also planning to work with different types of organic waste (like wood scraps, food leftovers, and agricultural byproducts) to see if these can also be converted into materials that improve concrete’s structural properties.</p>



<p>These assessments are critical for determining whether the material can be used in large-scale construction projects. </p>



<p>The research team is committed to exploring the practicality of biochar-based concrete under real-world conditions to ensure its reliability and safety.</p>



<h2 class="wp-block-heading" id="h-future-of-coffee-grounds-and-concrete">Future of coffee grounds and concrete</h2>



<p>As buildings rise and infrastructure expands, the search for more sustainable practices will become even more urgent. This approach of adding coffee biochar to concrete could contribute to the circular economy.</p>



<p>Transforming a problematic waste into a valuable input, is the first push of many required to reduce reliance on raw materials such as natural sand. </p>



<p>The example of this approach sets the stage for industries to adopt similar methods, encouraging broader adoption of waste-to-resource strategies.</p>



<p>Such actions promise to lessen the environmental strain while boosting the long-term resilience of <a href="https://www.earth.com/news/how-ancient-romans-made-such-incredibly-durable-concrete-is-no-longer-a-mystery/" target="_blank" rel="noreferrer noopener">construction methods</a>.</p>



<p>Through continued collaboration between scientists, policymakers, and businesses, innovations like this have the potential to reshape the way we think about resources. </p>



<p>By connecting waste management to infrastructure, this research could redefine sustainability in the modern era.</p>



<p>The research findings were published in the <em><a href="https://www.sciencedirect.com/science/article/pii/S0959652623023636" target="_blank" rel="noreferrer noopener">Journal of Cleaner Production</a></em>.</p>



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Adding coffee grounds during the construction process could reinforce buildings

Every day, countless cups of coffee leave behind piles of...

<p>New research suggests that we could use artificial intelligence (AI) to combat climate change in a completely unexpected way. Experts are exploring the use of AI to reduce methane in cow burps.</p>



<p>Cows contribute to climate change significantly with their gassy stomachs. As part of their normal digestion, cows release methane, a potent greenhouse gas. </p>



<p>In fact, according to a recent study, methane from cows in the agriculture sector accounts for about 33 percent of U.S. agriculture and three percent of total U.S. <a href="https://www.earth.com/news/can-a-pill-stop-cows-from-burping-methane/" target="_blank" rel="noreferrer noopener">greenhouse gas emissions</a>.</p>



<h2 class="wp-block-heading" id="h-solutions-to-address-methane-emissions">Solutions to address methane emissions </h2>



<p>Experts with the ARS Livestock Nutrient Management Research Unit and <a href="https://www.iastate.edu/" target="_blank" rel="noreferrer noopener">Iowa State University</a>'s Department of Chemical and Biological Engineering are investigating ways to reduce these methane emissions.</p>



<p>"Developing solutions to address methane emissions from animal agriculture is a critical priority," stated ARS Administrator Simon Liu.</p>



<p>"Our scientists continue to use innovative and data-driven strategies to help cattle producers achieve emission reduction goals that will safeguard the environment and promote a more sustainable future for agriculture."</p>



<h2 class="wp-block-heading" id="h-methane-production-in-cows">Methane production in cows</h2>



<p>Cows digest tough plant materials in their rumen, the largest of their four stomach compartments. In the rumen, microorganisms break down these plants, releasing <a href="https://www.earth.com/news/seaweed-supplements-reduce-methane-in-grazing-cattle/" target="_blank" rel="noreferrer noopener">methane gas</a> as a natural byproduct. </p>



<p>This methane is expelled through burping that contributes to climate change. Scientists have discovered that certain compound molecules can inhibit this methane production.</p>



<p>Bromoform, a molecule naturally found in seaweed, has demonstrated a capacity to lessen cattle methane production by an astounding 80-98 percent.</p>



<p>The catch? It's a carcinogen, so it's not safe for cattle consumption and therefore not a viable solution for food safety reasons.</p>



<h2 class="wp-block-heading" id="h-cutting-methane-from-cows-with-ai">Cutting methane from cows with AI </h2>



<p>Facing the challenge of time-consuming and financially demanding research, the ARS scientists decided to employ AI and computational models to speed up the search for a safe and effective bromoform substitute.</p>



<p>"We are using advanced molecular simulations and AI to identify novel methane inhibitors based on the properties of previously investigated inhibitors [like bromoform], but that are safe, scalable, and have a large potential to inhibit methane <a href="https://www.earth.com/news/rising-methane-emissions-threaten-earths-habitability/" target="_blank" rel="noreferrer noopener">emissions</a>," noted Matthew Beck, an animal research scientist.</p>



<p>Teams from both institutions are working hand-in-hand. Iowa State University is leading the computer simulation and AI work, while ARS is identifying compounds and testing them through in vitro (lab) and in vivo (live cattle) studies.</p>



<h2 class="wp-block-heading" id="h-behavior-of-molecules-in-a-cow-s-stomach">Behavior of molecules in a cow's stomach</h2>



<p>For this particular research, the experts are using what is known as a "graph neural network." In a nutshell, AI learns from publicly available data about cow rumen and predicts the behavior of molecules that can be further tested in laboratories.</p>



<p>This cycle creates a continuous feedback loop that helps the AI make more accurate predictions.</p>



<p>"Our graph neural network is a machine learning model, which learns the properties of molecules, including details of the atoms and the chemical bonds that hold them, while retaining useful information about the molecules' properties to help us study how they are likely to behave in the <a href="https://www.earth.com/news/microbes-have-emerged-as-major-source-of-methane-emissions/" target="_blank" rel="noreferrer noopener">cow's stomach</a>," explained ISU Professor Ratul Chowdhury.</p>



<h2 class="wp-block-heading" id="h-the-role-of-ai-in-methane-reduction">The role of AI in methane reduction</h2>



<p>The experts have identified 15 molecules that appear to have the same potential to inhibit methane production as bromoform.</p>



<p>The hope is that AI will play a significant role in understanding how these molecules interact with the microbial community of the cow's stomach - letting us discover novel molecules, and potentially key interactions, within the cow's stomach microbiome.</p>



<p>Jacek Koziel, <a href="https://www.ars.usda.gov" target="_blank" rel="noreferrer noopener">USDA-ARS</a> research leader, acknowledges the limitations of current strategies to mitigate methane emissions but sees great potential in this approach.</p>



<p>"This is why combining AI with laboratory research, through iterative refinement, is a valuable scientific tool," said Koziel.</p>



<p>"AI can fast-forward the research and accelerate these several pathways that animal nutritionists, researchers, and companies can pursue to get us closer to a very ambitious goal of limiting greenhouse gas emissions and helping mitigate climate change."</p>



<p>The power of AI is only limited by our imagination. From reducing cow burps to combating climate change, artificial intelligence is becoming an important ally in the fight to protect our natural world.</p>



<p>The full study was published in the journal <em><a href="https://academic.oup.com/af/article/14/6/33/7942668" target="_blank" rel="noreferrer noopener">Animal Frontiers</a></em>.</p>



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How AI can help reduce methane emissions from cows

New research suggests that we could use artificial intelligence (AI)...

<p></p>
<div id="58e3ebce955a315103d39bd1" class="vdb_player vdb_58e3ebce955a315103d39bd158d96b98cd4fed198a0d2a49" vdb_params="m.embeded=cms_video_plugin_www.earth.com"  data-placeholder="//img.vidible.tv/prod/2020-08/01/5f251072c2e7f94a5e7e6846/5f2510874191ca000173138e_768x432_FES_v1.jpg?w=1600&#038;h=900&#038;q=60">
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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.esa.int/"><span style="font-weight: 400;">European Space Agency</span></a><span style="font-weight: 400;"> features a false-color view of the Flinders mountains, which make up the largest mountain range in South Australia.</span></p>
<p><span style="font-weight: 400;">The Flinders range began to form around 800 million years ago out of ancient sea sediments that &#8220;folded&#8221; into mountains as a result of tectonic activity. The mountains ultimately eroded, and created the unique landscape that still exists today.</span></p>
<p><span style="font-weight: 400;">The Adnyamathanha people have inhabited the range for tens of thousands of years.</span></p>
<p><span style="font-weight: 400;">The image was captured on December 31, 2019 by the Copernicus Sentinel-2 mission.</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: ESA </span></i></p>
<p>&nbsp;</p>

The Flinders mountains in South Australia