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impact craters

Incoming! Somewhat fanciful artwork depicting the asteroid responsible for the Hiawatha impact crater asteroid breaking up high above the Earth before slamming into Greenland. Credit: Natural History Museum of Denmark, Cryospheric Sciences Lab, NASA/GSFC

UPDATE: So, about that 'young' asteroid impact crater in Greenland... it's actually old. Really old.

Huge crater under the ice is 60 million years old.
By Phil Plait | 
3 months ago
Phil Plait Bad Astronomy Impact Earth

280 million years ago a huge asteroid slammed into the Wyoming/Nebraska border

Immense explosion rained debris down for hundreds of kilometers.
By Phil Plait | 
4 months ago
Liz Mars GETTY

Mars has been getting beat up by asteroids for 600 million years

Even if things had lived there, they probably wouldn't have wanted to hang around.
By Elizabeth Rayne | 
4 months ago
Jupiter’s moon Ganymede, showing the dark and light terrains; the furrows can be seen to the upper right in the dark terrain. Credit: NASA / JPL-Caltech / Emily Lakdawalla

The biggest crater known was from an asteroid that made the dinosaur killer look like a pebble

By Phil Plait | 
1 year ago
Pierazzo crater, an impact site on the lunar far side, just over the edge of the Moon as seen from Earth. Credit: NASA/GSFC/Arizona State University

Earth's asteroid impact rate took a sudden jump 290 million years ago

By Phil Plait | 
1 year ago
A pair of craters on Saturn’s moon Titan mapped by Cassini’s radar. Credit: NASA/JPL-Caltech/ASI

Are rivers of liquid methane washing away craters on Saturn’s moon Titan?

By Phil Plait | 
2 years ago
Pallas asteroid

Watch out, Avengers: This asteroid has a more violent track record than Thanos

By Elizabeth Rayne | 
2 years ago
Meteor

Incoming! Scientists pinpoint impact crater of ancient Asian meteor strike

By Jeff Spry | 
2 years ago
Two images show data from TESS (left) including the comet and stars, and then processed (right) with the stars removed to show the comet more clearly. Credit: Farnham et al.

TESS saw the comet 47/P Wirtanen undergo an outburst after a debris impact

By Phil Plait | 
2 years ago
A 3D model of the surface of the asteroid Ryugu created from Hayabusa2 data. Note that in frame A, the rock Catafo Saxum sits right in the center, marking the meridian (0° longitude) of Ryugu. Credit: Watanabe et al.

Ryugu’s history has been… weird

By Phil Plait | 
2 years ago
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