impact event
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Dust Doomed the Dinos, Scientists Say
We all know how the story goes: a large asteroid falls to Earth from space, slamming into the Yucatán Peninsula with 100 million megatons of force. The impact spawned tsunami waves best measured in miles and kicked up dust, soot, and sulphur that blotted out the Sun, causing the death of about 75% of Earth’s…
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Gigantic Greenland Impact Crater Is Much Older Than Scientists Thought
A hidden impact crater in northwestern Greenland dates back some 58 million years, making it far older than previous estimates. The challenge now will be to find further evidence of what was surely a massively disruptive global-scale event.
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NASA’s Upgraded Impact Monitoring System Could Prevent an Asteroid Apocalypse
A new asteroid impact monitoring system called Sentry-II is powerful, fast, and capable of handling difficult scenarios that continually baffled its predecessor.
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Scientists Detect Isolated Community of Microbes in Crater Left by Dino-Killing Asteroid
New research examines the rock-dwelling microbes that eventually returned to the spot where a 10 km-wide asteroid smashed into Earth some 66 million years ago, killing off most life on the planet.