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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. 24, 2021 Researchers believe they have closed the case of what killed the dinosaurs, definitively linking their extinction with an asteroid that slammed into Earth 66 million years ago by finding a key piece ...
Mar. 11, 2021 Several years after scientists discovered what was considered the oldest crater a meteorite made on the planet, another team found it's actually the result of normal geological ...
Apr. 8, 2021 The 15-million-year-old Nördlinger Ries is an asteroid impact crater filled with lake sediments. A research team has now discovered a volcanic ash layer in the crater. In addition, they show that ...
Feb. 22, 2023 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 ...
Jan. 21, 2021 A comparison of chemical and climate weathering of sedimentary rock in Mars' Gale Crater indicate the region's mean temperature billions of years ago was akin to current conditions on ...
Aug. 1, 2023 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 ...
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. ...
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, ...