https://www.sciencedaily.com/news/earth_climate/near-earth_object_impacts/ Near-Earth Objects. Near Earth Asteroids. Meteorites have impacted planet Earth many times. Scientists review the geological records and make predictions of risks of near Earth object impacts. en-us Fri, 17 Apr 2026 09:12:45 EDT Fri, 17 Apr 2026 09:12:45 EDT 60 https://www.sciencedaily.com/images/scidaily-logo-rss.png https://www.sciencedaily.com/news/earth_climate/near-earth_object_impacts/ For more science news, visit ScienceDaily. https://www.sciencedaily.com/releases/2026/04/260403224449.htm Asteroid impacts may have helped kick-start life on Earth by creating hot, chemical-rich environments ideal for early biology. These impact-generated hydrothermal systems could have lasted thousands of years—long enough for life’s building blocks to form. Scientists now think these environments may have been common on early Earth, making them a strong candidate for where life began. The idea could also guide the search for life on other worlds. Fri, 03 Apr 2026 22:44:49 EDT https://www.sciencedaily.com/releases/2026/04/260403224449.htm https://www.sciencedaily.com/releases/2026/03/260319044714.htm A mysterious spike of platinum buried deep in Greenland’s ice has long fueled theories of a catastrophic comet or asteroid strike 12,800 years ago—possibly triggering a sudden return to icy conditions known as the Younger Dryas. But new research points to a far less dramatic, yet still powerful culprit: volcanic eruptions. Scientists found the platinum signal doesn’t match space debris and actually appeared decades after the cooling began, ruling out an impact as the trigger. Fri, 20 Mar 2026 06:01:12 EDT https://www.sciencedaily.com/releases/2026/03/260319044714.htm https://www.sciencedaily.com/releases/2026/03/260315004414.htm The asteroid impact that wiped out the dinosaurs didn’t keep life down for long. New research shows that microscopic plankton began evolving into new species within just a few thousand years—and possibly in under 2,000 years—after the disaster. Scientists uncovered this rapid rebound by using a rare isotope marker to more accurately measure time in ancient sediments. The discovery suggests life recovered far faster than previously thought. Sun, 15 Mar 2026 00:44:14 EDT https://www.sciencedaily.com/releases/2026/03/260315004414.htm https://www.sciencedaily.com/releases/2026/03/260311004836.htm A long-running debate about the Silverpit Crater beneath the North Sea has finally been resolved. Scientists now confirm it formed when a roughly 160-meter asteroid struck the seabed about 43–46 million years ago. New seismic imaging and rare shocked minerals in rock samples provided the crucial proof. The impact would have sent a massive plume skyward and unleashed a tsunami over 100 meters (330 feet) high. Wed, 11 Mar 2026 01:34:49 EDT https://www.sciencedaily.com/releases/2026/03/260311004836.htm https://www.sciencedaily.com/releases/2026/02/260228093512.htm For the first time ever, scientists have uncovered a vast field of tektites in Brazil — mysterious glassy fragments forged when a powerful extraterrestrial object slammed into Earth about 6.3 million years ago. Named “geraisites” after Minas Gerais, where they were first found, these dark, aerodynamic droplets of natural glass stretch across more than 900 kilometers and may mark one of South America’s most significant ancient impact events. Sun, 01 Mar 2026 11:29:33 EST https://www.sciencedaily.com/releases/2026/02/260228093512.htm https://www.sciencedaily.com/releases/2025/12/251225080736.htm Scientists are uncovering new clues that a cosmic explosion may have rocked Earth at the end of the last ice age. At major Clovis-era sites, researchers found shocked quartz—evidence of intense heat and pressure consistent with a comet airburst rather than volcanism or human activity. The event could have sparked massive fires, blocked sunlight, and triggered a rapid return to ice-age conditions. These harsh changes may explain the sudden loss of megafauna and the disappearance of the Clovis culture. Thu, 01 Jan 2026 23:12:42 EST https://www.sciencedaily.com/releases/2025/12/251225080736.htm https://www.sciencedaily.com/releases/2025/12/251218060602.htm Cosmic “touchdown airbursts” — explosions of comets or asteroids above Earth’s surface — may be far more common and destructive than previously thought, according to new research. Unlike crater-forming impacts, these events unleash extreme heat and pressure without leaving obvious scars, making them harder to detect. Fri, 19 Dec 2025 01:30:09 EST https://www.sciencedaily.com/releases/2025/12/251218060602.htm https://www.sciencedaily.com/releases/2025/11/251123115431.htm About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across space rocks. By examining subtle isotopic fingerprints in Earth and Moon samples, scientists have reconstructed Theia’s possible composition and birthplace. Sun, 23 Nov 2025 13:03:07 EST https://www.sciencedaily.com/releases/2025/11/251123115431.htm https://www.sciencedaily.com/releases/2025/11/251114041210.htm A massive, well-preserved impact crater has been uncovered in Guangdong, revealing the signature of a powerful meteorite strike during the Holocene. Measuring 900 meters across, it dwarfs other known craters from the same era. Shock-damaged quartz confirms the intense forces involved. Its survival in a high-erosion environment makes it a geological rarity. Fri, 14 Nov 2025 09:14:54 EST https://www.sciencedaily.com/releases/2025/11/251114041210.htm https://www.sciencedaily.com/releases/2025/11/251112111032.htm Researchers discovered that living horsetails act like natural distillation towers, producing bizarre oxygen isotope signatures more extreme than anything previously recorded on Earth—sometimes resembling meteorite water. By tracing these isotopic shifts from the plant base to its tip, scientists unlocked a new way to decode ancient humidity and climate, using both modern plants and fossilized phytoliths that preserve isotopic clues for millions of years. Thu, 13 Nov 2025 03:31:03 EST https://www.sciencedaily.com/releases/2025/11/251112111032.htm https://www.sciencedaily.com/releases/2025/10/251030075121.htm The Taurid meteor shower, born from Comet Encke, delights skywatchers but may conceal hidden risks. Research led by Mark Boslough examines potential Taurid swarms that could increase impact danger in 2032 and 2036. Using planetary defense modeling and telescope data, scientists assess these threats while fighting misinformation and promoting preparedness. Fri, 31 Oct 2025 02:18:06 EDT https://www.sciencedaily.com/releases/2025/10/251030075121.htm https://www.sciencedaily.com/releases/2025/10/251027023806.htm A massive crater hidden beneath the Atlantic seafloor has been confirmed as the result of an asteroid strike from 66 million years ago. The new 3D seismic data reveals astonishing details about the violent minutes following impact—towering tsunamis, liquefied rock, and shifting seabeds. Researchers call it a once-in-a-lifetime look at how oceanic impacts unfold. Mon, 27 Oct 2025 04:50:26 EDT https://www.sciencedaily.com/releases/2025/10/251027023806.htm https://www.sciencedaily.com/releases/2025/10/251016223056.htm Researchers have discovered chemical fingerprints of Earth's earliest incarnation, preserved in ancient mantle rocks. A unique imbalance in potassium isotopes points to remnants of “proto Earth” material that survived the planet’s violent formation. The study suggests the original building blocks of Earth remain hidden beneath its surface, offering a direct glimpse into our planet’s ancient origins. Fri, 17 Oct 2025 05:31:35 EDT https://www.sciencedaily.com/releases/2025/10/251016223056.htm https://www.sciencedaily.com/releases/2025/10/251015230957.htm Researchers discovered a new field of ancient tektites in South Australia, revealing a long-forgotten asteroid impact. These 11-million-year-old glass fragments differ chemically and geographically from other known tektites. Although the crater remains missing, the find exposes a massive event once thought unrecorded, offering clues to Earth’s tumultuous past and planetary defense. Thu, 16 Oct 2025 07:49:46 EDT https://www.sciencedaily.com/releases/2025/10/251015230957.htm https://www.sciencedaily.com/releases/2025/10/251015230955.htm Ryugu’s samples reveal that water activity on asteroids lasted far longer than scientists thought, possibly reshaping theories of how Earth gained its oceans. A billion-year-old impact may have melted ancient ice, keeping asteroids wet and influential far into solar system history. Thu, 16 Oct 2025 09:24:37 EDT https://www.sciencedaily.com/releases/2025/10/251015230955.htm https://www.sciencedaily.com/releases/2025/04/250428220303.htm New research has revealed that a massive meteorite struck northwestern Scotland about 200 million years later than previously thought, in a discovery that not only rewrites Scotland's geological history but alters our understanding of the evolution of non-marine life on Earth. Mon, 28 Apr 2025 22:03:03 EDT https://www.sciencedaily.com/releases/2025/04/250428220303.htm https://www.sciencedaily.com/releases/2025/04/250416135918.htm Researchers have helped overturn the popular theory that water on Earth originated from asteroids bombarding its surface; Scientists have analyzed a meteorite analogous to the early Earth to understand the origin of hydrogen on our planet. The research team demonstrated that the material which built our planet was far richer in hydrogen than previously thought. The findings support the theory that the formation of habitable conditions on Earth did not rely on asteroids hitting the Earth. Wed, 16 Apr 2025 13:59:18 EDT https://www.sciencedaily.com/releases/2025/04/250416135918.htm https://www.sciencedaily.com/releases/2025/04/250411110037.htm Earth's rocky layers are mysteriously low in nitrogen compared with carbon and argon. A scientific team explored our planet's molten youth using advanced quantum mechanical simulations, revealing nitrogen's secret: under extreme pressure, it chose to hide in the iron core 100 times more than the mantle. This solved why Earth's volatile ratios involving nitrogen look odd. The findings suggest the necessary ingredients for developing a habitable world may have been settled in the early Earth. Fri, 11 Apr 2025 11:00:37 EDT https://www.sciencedaily.com/releases/2025/04/250411110037.htm https://www.sciencedaily.com/releases/2025/04/250401233454.htm More mammals were living on the ground several million years before the mass extinction event that wiped out the dinosaurs, new research has revealed. Tue, 01 Apr 2025 23:34:54 EDT https://www.sciencedaily.com/releases/2025/04/250401233454.htm https://www.sciencedaily.com/releases/2025/03/250306122924.htm Researchers have discovered the world's oldest known meteorite impact crater, which could significantly redefine our understanding of the origins of life and how our planet was shaped. The team found evidence of a major meteorite impact 3.5 billion years ago. Thu, 06 Mar 2025 12:29:24 EST https://www.sciencedaily.com/releases/2025/03/250306122924.htm https://www.sciencedaily.com/releases/2025/02/250205142757.htm Earliest inner solar system planetesimals shaped the inventory of moderately volatile elements in terrestrial planets. Wed, 05 Feb 2025 14:27:57 EST https://www.sciencedaily.com/releases/2025/02/250205142757.htm https://www.sciencedaily.com/releases/2025/02/250205142752.htm A new climate modeling study presents a new scenario of how climate and life on our planet would change in response to a potential future strike of a medium-sized (~500 m) asteroid. Wed, 05 Feb 2025 14:27:52 EST https://www.sciencedaily.com/releases/2025/02/250205142752.htm https://www.sciencedaily.com/releases/2025/02/250203163842.htm Scientist have concluded water did not arrive as early during Earth's formation as previously thought, an insight that bears directly on the question of when life originated on the planet. The finding is significant because the data reported by the study support the idea that water arrived towards the final stages of Earth's development into a planet from dust and gas, what geologists refer to as late accretion. Mon, 03 Feb 2025 16:38:42 EST https://www.sciencedaily.com/releases/2025/02/250203163842.htm https://www.sciencedaily.com/releases/2025/01/250116133822.htm Previous studies have posited that the mass extinction that wiped the dinosaurs off the face of the Earth was caused by the release of large volumes of sulfur from rocks within the Chicxulub impact crater 66 million years ago. A new study questions this scenario. Using groundbreaking empirical measurements of sulfur within the related Cretaceous-Paleogene (K-Pg) boundary layer, the international team has demonstrated that the role of sulfur during the extinction has been overestimated. Thu, 16 Jan 2025 13:38:22 EST https://www.sciencedaily.com/releases/2025/01/250116133822.htm https://www.sciencedaily.com/releases/2024/12/241204114317.htm Two massive asteroids hit Earth around 35.65 million years ago, but did not lead to any lasting changes in the Earth's climate, according to a new study. Wed, 04 Dec 2024 11:43:17 EST https://www.sciencedaily.com/releases/2024/12/241204114317.htm https://www.sciencedaily.com/releases/2024/11/241114125821.htm Researchers have discovered meter-high chimneys on the floor of the Dead Sea. These are formed by the spontaneous crystallization of minerals from groundwater with an extremely high salt content flowing up out of the lake floor, they report. The vents are an important early warning indicator for sinkholes. These subsidence craters form in the area surrounding the Dead Sea and pose a significant hazard to the population. Thu, 14 Nov 2024 12:58:21 EST https://www.sciencedaily.com/releases/2024/11/241114125821.htm https://www.sciencedaily.com/releases/2024/10/241028132352.htm Once abundant, the massive, colorful clam is now locally extinct in many regions, with a critical drop in population due to overfishing and climate change. Mon, 28 Oct 2024 13:23:52 EDT https://www.sciencedaily.com/releases/2024/10/241028132352.htm https://www.sciencedaily.com/releases/2024/10/241021170403.htm Scientists paint a compelling picture of what happened the day the S2 meteorite crashed into Earth 3.26 billion years ago. Mon, 21 Oct 2024 17:04:03 EDT https://www.sciencedaily.com/releases/2024/10/241021170403.htm https://www.sciencedaily.com/releases/2024/09/240926131949.htm Squinting into the treetops won't reveal the tiny organisms up there. But these creatures leave clues, in the form of DNA, on the leaves and branches. Now, researchers report that they have developed a way to collect this genetic material: a drone with a specialized fabric probe. The team flew the drone above the rainforest and, based on DNA collected by the probe, identified the invertebrates in the canopy. Thu, 26 Sep 2024 13:19:49 EDT https://www.sciencedaily.com/releases/2024/09/240926131949.htm https://www.sciencedaily.com/releases/2024/08/240806131238.htm Markings on a stone pillar at a 12,000 year-old archaeological site in Turkey likely represent the world's oldest solar calendar, created as a memorial to a devastating comet strike, experts suggest. Tue, 06 Aug 2024 13:12:38 EDT https://www.sciencedaily.com/releases/2024/08/240806131238.htm https://www.sciencedaily.com/releases/2024/07/240731170951.htm Study finds that the mass extinction caused by an asteroid about 66 million years ago led to critical changes in bird genomes that ultimately sparked the incredibly diversity living birds. Wed, 31 Jul 2024 17:09:51 EDT https://www.sciencedaily.com/releases/2024/07/240731170951.htm https://www.sciencedaily.com/releases/2024/07/240731141234.htm New research led proposes a plan to safeguard Earth's imperiled biodiversity by cryogenically preserving biological material on the moon. The moon's permanently shadowed craters are cold enough for cryogenic preservation without the need for electricity or liquid nitrogen. Wed, 31 Jul 2024 14:12:34 EDT https://www.sciencedaily.com/releases/2024/07/240731141234.htm https://www.sciencedaily.com/releases/2024/07/240709121817.htm Age data for certain classes of meteorite have made it possible to gain new findings on the origin of small water-rich astronomical bodies in the early solar system. These planetesimals continually supplied building materials for planets -- also for the Earth, whose original material contained little water. The Earth received its actual water through planetesimals, which emerged at low temperatures in the outer solar system, as shown by computational models carried out by an international research teach with participation by earth scientists. Tue, 09 Jul 2024 12:18:17 EDT https://www.sciencedaily.com/releases/2024/07/240709121817.htm https://www.sciencedaily.com/releases/2024/07/240701232841.htm Two samples from Mars together deliver clear evidence of the origin of Martian organic material. The study presents solid evidence for a prediction made over a decade ago that could be key to understanding how organic molecules, the foundation of life, were first formed here on Earth. Mon, 01 Jul 2024 23:28:41 EDT https://www.sciencedaily.com/releases/2024/07/240701232841.htm https://www.sciencedaily.com/releases/2024/06/240626152057.htm Researchers continue to expand the case for the Younger Dryas Impact hypothesis. The idea proposes that a fragmented comet smashed into the Earth's atmosphere 12,800 years ago, causing a widespread climatic shift that, among other things, led to the abrupt reversal of the Earth's warming trend and into an anomalous near-glacial period called the Younger Dryas. Wed, 26 Jun 2024 15:20:57 EDT https://www.sciencedaily.com/releases/2024/06/240626152057.htm https://www.sciencedaily.com/releases/2024/04/240408130613.htm Antarctica harbors a large concentration of meteorites imbuing the icy continent with an unparalleled wealth of information on our solar system. However, these precious meteorites are rapidly disappearing from the ice sheet surface due to global warming, according to a new study. Mon, 08 Apr 2024 13:06:13 EDT https://www.sciencedaily.com/releases/2024/04/240408130613.htm https://www.sciencedaily.com/releases/2024/03/240311145816.htm Researchers provide evidence that traces of the widely used PFAS chemicals in human blood are associated with unfavorable lipid profiles and thus with an increased risk of cardiovascular diseases. The findings are based on data from more than 2,500 adults. PFAS were detectable in the blood of nearly all study participants. Mon, 11 Mar 2024 14:58:16 EDT https://www.sciencedaily.com/releases/2024/03/240311145816.htm https://www.sciencedaily.com/releases/2024/03/240307165128.htm Sound waves thought to be from a 2014 meteor fireball north of Papua New Guinea were almost certainly vibrations from a truck rumbling along a nearby road, new research shows. The findings raise doubts that materials pulled last year from the ocean are alien materials from that meteor, as was widely reported. Thu, 07 Mar 2024 16:51:28 EST https://www.sciencedaily.com/releases/2024/03/240307165128.htm https://www.sciencedaily.com/releases/2024/01/240123122243.htm The Hayabusa2 mission that collected samples from the asteroid Ryugu has provided a treasure trove of insights into our solar system. After analyzing samples further, a team of researchers have unearthed evidence that cometary organic matter was transported from space to the near-Earth region. Tue, 23 Jan 2024 12:22:43 EST https://www.sciencedaily.com/releases/2024/01/240123122243.htm https://www.sciencedaily.com/releases/2024/01/240109121133.htm Analysis of iron meteorites from the earliest years of the solar system indicate that the planetary 'seeds' that ultimately formed Earth contained water. Tue, 09 Jan 2024 12:11:33 EST https://www.sciencedaily.com/releases/2024/01/240109121133.htm https://www.sciencedaily.com/releases/2023/12/231221012817.htm The world's ocean are a vast habitat for countless creatures that settle, spawn, dig or feed on the seafloor. They also influence the shape of the ocean floor. How exactly this takes place has been scarcely investigated so far. In an interdisciplinary study, geoscientists, biologists and oceanographers, have examined crater-like depressions on the seafloor of the North Sea. They were able to show that these directly relate to the habitats of porpoises and sand eels, and for the first time provide a conclusive explanation for the importance of vertebrates in shaping the seafloor. Thu, 21 Dec 2023 01:28:17 EST https://www.sciencedaily.com/releases/2023/12/231221012817.htm https://www.sciencedaily.com/releases/2023/12/231204135115.htm What wiped out the dinosaurs? A meteorite plummeting to Earth is only part of the story, a new study suggests. Climate change triggered by massive volcanic eruptions may have ultimately set the stage for the dinosaur extinction, challenging the traditional narrative that a meteorite alone delivered the final blow to the ancient giants. Mon, 04 Dec 2023 13:51:15 EST https://www.sciencedaily.com/releases/2023/12/231204135115.htm https://www.sciencedaily.com/releases/2023/11/231114215641.htm How did the molecular building blocks for life end up on Earth? One long-standing theory is that they could have been delivered by comets. Now, researchers have shown how comets could deposit similar building blocks to other planets in the galaxy. Tue, 14 Nov 2023 21:56:41 EST https://www.sciencedaily.com/releases/2023/11/231114215641.htm https://www.sciencedaily.com/releases/2023/11/231101134924.htm The remnants of an ancient planet that collided with Earth to form the Moon lie deep within the earth, according to a new model. Wed, 01 Nov 2023 13:49:24 EDT https://www.sciencedaily.com/releases/2023/11/231101134924.htm https://www.sciencedaily.com/releases/2023/10/231026131556.htm The explosion of the underwater volcano Kolumbo in the Aegean Sea in 1650 triggered a destructive tsunami that was described by historical eye witnesses. A group of researchers has now surveyed Kolumbo's underwater crater with modern imaging technology and reconstructed the historical events. They found that the eyewitness accounts of the natural disaster can only be described by a combination of a landslide followed by an explosive eruption. Thu, 26 Oct 2023 13:15:56 EDT https://www.sciencedaily.com/releases/2023/10/231026131556.htm https://www.sciencedaily.com/releases/2023/10/231025110641.htm A new report finds that drastic changes are approaching if risks to our fundamental socioecological systems are not addressed.  The Interconnected Disaster Risks Report 2023 warns of six risk tipping points ahead of us: Accelerating extinctions; Groundwater depletion; Mountain glaciers melting; Space debris; Unbearable heat; and an Uninsurable future. Wed, 25 Oct 2023 11:06:41 EDT https://www.sciencedaily.com/releases/2023/10/231025110641.htm https://www.sciencedaily.com/releases/2023/10/231016163131.htm Using tools hitched to the nose cone of their research planes and sampling more than 11 miles above the planet's surface, researchers have discovered significant amounts of metals in aerosols in the atmosphere, likely from increasingly frequent launches and returns of spacecraft and satellites. That mass of metal is changing atmospheric chemistry in ways that may impact Earth's atmosphere and ozone layer. Mon, 16 Oct 2023 16:31:31 EDT https://www.sciencedaily.com/releases/2023/10/231016163131.htm https://www.sciencedaily.com/releases/2023/09/230927002713.htm The sun sends enormous amounts of energy to the earth. Nevertheless, some of it is lost in solar cells. This is an obstacle in the use of organic solar cells, especially for those viable in innovative applications. A key factor in increasing their performance: Improved transport of the solar energy stored within the material. Now a research group has shown that certain organic dyes can help build virtual highways for the energy. Wed, 27 Sep 2023 00:27:13 EDT https://www.sciencedaily.com/releases/2023/09/230927002713.htm https://www.sciencedaily.com/releases/2023/08/230801163251.htm Earth's oldest craters could give scientists critical information about the structure of the early Earth and the composition of bodies in the solar system as well as help to interpret crater records on other planets. But geologists can't find them, and they might never be able to, according to a new study. Tue, 01 Aug 2023 16:32:51 EDT https://www.sciencedaily.com/releases/2023/08/230801163251.htm https://www.sciencedaily.com/releases/2023/08/230801105044.htm A new study uses nearly a century of data to show that the average heights of winter waves along the California coast have increased as climate change has heated up the planet. Tue, 01 Aug 2023 10:50:44 EDT https://www.sciencedaily.com/releases/2023/08/230801105044.htm https://www.sciencedaily.com/releases/2023/07/230731151552.htm Earth is rapidly warming and scientists are developing a variety of approaches to reduce the effects of climate change. An astronomer has proposed a novel approach -- a solar shield to reduce the amount of sunlight hitting Earth, combined with a tethered, captured asteroid as a counterweight. Engineering studies using this approach could start now to create a workable design that could mitigate climate change within decades. Mon, 31 Jul 2023 15:15:52 EDT https://www.sciencedaily.com/releases/2023/07/230731151552.htm https://www.sciencedaily.com/releases/2023/06/230627123015.htm A Cretaceous origin for placental mammals, the group that includes humans, dogs and bats, has been revealed by in-depth analysis of the fossil record, showing they co-existed with dinosaurs for a short time before the dinosaurs went extinct. Tue, 27 Jun 2023 12:30:15 EDT https://www.sciencedaily.com/releases/2023/06/230627123015.htm https://www.sciencedaily.com/releases/2023/05/230518120907.htm Scientists have discovered a new species of mosasaur, a sea-dwelling lizard from the age of the dinosaurs, with strange, ridged teeth unlike those of any known reptile. Along with other recent finds from Africa, it suggests that mosasaurs and other marine reptiles were evolving rapidly up until 66 million years ago, when they were wiped out by an asteroid along with the dinosaurs and around 90% of all species on Earth. Thu, 18 May 2023 12:09:07 EDT https://www.sciencedaily.com/releases/2023/05/230518120907.htm https://www.sciencedaily.com/releases/2023/04/230419125050.htm Two protein complexes carry the major responsibility for the spatial organization of chromosomes in our cell nuclei. DNA tension plays a surprising role in this. Nanoscientists now publish how they have visualized this. Wed, 19 Apr 2023 12:50:50 EDT https://www.sciencedaily.com/releases/2023/04/230419125050.htm https://www.sciencedaily.com/releases/2023/04/230411150459.htm A lightning strike in New Port Richey, Florida, led to a chemical reaction creating a new material that is transitional between space minerals and minerals found on Earth. High-energy events, such as lightning, can cause unique chemical reactions. In this instance, the result is a new material -- one that is transitional between space minerals and minerals found on Earth. Tue, 11 Apr 2023 15:04:59 EDT https://www.sciencedaily.com/releases/2023/04/230411150459.htm https://www.sciencedaily.com/releases/2023/03/230315132425.htm A new study brings scientists one step closer to answering the question of where Earth's water came from. Wed, 15 Mar 2023 13:24:25 EDT https://www.sciencedaily.com/releases/2023/03/230315132425.htm https://www.sciencedaily.com/releases/2023/03/230307144354.htm The Phlegraean volcanic fields just west of Naples, Italy, are among the top eight emitters of volcanic carbon dioxide in the world. Since 2005, the Solfatara crater -- one of many circular depressions in the landscape left by a long history of eruptions --has been emitting increased volumes of gas. Today it emits 4,000-5,000 tons of carbon dioxide each day, equivalent to the emissions from burning ~500,000 gallons of gasoline. Researchers estimate that as much as 20%--40% of the current carbon dioxide emissions are from the dissolution of calcite in the rocks, while 60%--80% is from underground magma. Tue, 07 Mar 2023 14:43:54 EST https://www.sciencedaily.com/releases/2023/03/230307144354.htm https://www.sciencedaily.com/releases/2023/03/230301141413.htm In 2022 NASA embarked on a bold experiment to see if they could change an asteroid's velocity by smacking it with a ballistic probe -- kind of like hitting it with a hammer. This experiment was to test a potential technique to someday deflect an asteroid on a collision course to Earth. Perhaps, for the first time in the history of the universe, an intelligent planetary species sought ways to avoid its own potential extinction by threats from outer space (something the dinosaurs, who were wiped out 65 million years ago by a rogue asteroid, never evolved to accomplish). Wed, 01 Mar 2023 14:14:13 EST https://www.sciencedaily.com/releases/2023/03/230301141413.htm https://www.sciencedaily.com/releases/2023/03/230301120854.htm Astronomers offer new insight into how deflection missions can protect the planet from future Earth-bound asteroids and comets. Wed, 01 Mar 2023 12:08:54 EST https://www.sciencedaily.com/releases/2023/03/230301120854.htm https://www.sciencedaily.com/releases/2023/02/230222115945.htm Countless meteorites have struck Earth in the past and shaped the history of our planet. It is assumed, for example, that meteorites brought with them a large part of its water. The extinction of the dinosaurs might also have been triggered by the impact of a very large meteorite. It turns out that the marketing 'gag' of the 'Domaine du Météore' winery is acutally a real impact crater. Meteorite craters which are still visible today are rare because most traces of the celestial bodies have long since disappeared again. Wed, 22 Feb 2023 11:59:45 EST https://www.sciencedaily.com/releases/2023/02/230222115945.htm