Oct. 6, 2022 Some 66 million years ago, a 10-kilometer asteroid hit Earth, triggering the extinction of the dinosaurs. New evidence suggests that the Chicxulub impact also triggered an earthquake so massive that ...
Oct. 4, 2022 Most theories claim the Moon formed out of the debris of a collision between the Earth and an object about the size of Mars, called Theia, coalescing in orbit over months or years. A new simulation ...
Aug. 24, 2022 New research has found evidence that Earth's early continents resulted from being hit by comets as our Solar System passed into and out of the spiral arms of the Milky Way Galaxy, turning ...
Aug. 10, 2022 Researchers discover the first definitive proof that the Moon inherited indigenous noble gases from the Earth's mantle. The discovery represents a significant piece of the puzzle towards ...
Aug. 8, 2022 When a small asteroid enters Earth's atmosphere from space, its surface is brutally heated, causing melting and fragmenting. Therefore, it was somewhat of a mystery why the rocks near the ...
July 12, 2022 What do Mars and Iceland have in common? These days, not so much. But more than 4.5 billion years ago, it's possible the Red Planet had a crust comparable to Iceland today. This discovery, ...
June 9, 2022 While much of public attention on Yellowstone focuses on its potential to produce large supereruptions, the hazards that are much more likely to occur are smaller, violent hydrothermal explosions. ...
May 17, 2022 Scientists have demonstrated that a new geochemical archive -- 182-Tungsten in banded iron formations -- can be used to simultaneously trace both the evolution of the Earth's mantle and ...
Apr. 28, 2022 Scientists show that remnants of the roots of Earth's first crust are still present in the terrestrial mantle and contribute to magmas erupted at the surface over Earth's ...
Apr. 27, 2022 Hydrogen and oxygen ions escaping from Earth's upper atmosphere and combining on the moon could be one of the sources of the known lunar water and ice, according to new ...
Mar. 28, 2022 Helium-3, a rare isotope of helium gas, is leaking out of Earth's core, a new study reports. Because almost all helium-3 is from the Big Bang, the gas leak adds evidence that Earth formed inside ...
Mar. 9, 2022 Researchers have dated the enormous Hiawatha impact crater, a 31-kilometer-wide meteorite crater buried under a kilometer of Greenlandic ice. The dating ends speculation that the meteorite impacted ...
Feb. 14, 2022 Several dozen small impact craters, 10--70-m in size, have been discovered in southeastern Wyoming. A team of U.S. and German geoscientists found these ancient craters in exposed sedimentary layers ...
Feb. 1, 2022 Because the moon is so important to life on Earth, scientists conjecture that a moon may be a potentially beneficial feature in harboring life on other planets. Most planets have moons, but ...
Feb. 1, 2022 The rapid decline of the Hopewell culture about 1,500 years ago might be explained by falling debris from a near-Earth comet that created a devastating explosion over North America, laying waste to ...
Dec. 13, 2021 A new study has found that the minerology of the rocks that a meteorite hits, rather than the size of the impact, determines how deadly an impact it will ...
Nov. 22, 2021 A scientist has discovered a method for detecting and better defining meteorite impact sites that have long lost their tell-tale craters. The discovery could further the study of not only ...
Nov. 2, 2021 Heat from a comet exploding just above the ground fused the sandy soil into patches of glass stretching 75 kilometers, a new study ...
Oct. 21, 2021 A team has updated its asteroid bombardment model of the Earth with the latest geologic evidence of ancient, large collisions. These models have been used to understand how impacts may have affected ...
Oct. 6, 2021 New research suggests that Earth's 'solid' inner core is, in fact, endowed with a range of liquid, soft, and hard structures which vary across the top 150 miles of the inner ...
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