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 ...

A clear picture is emerging of why the asteroid that struck Earth 66 ... Prof Collins said: "If you run the model at different impact angles, at 30 degrees and at 45 degrees, say, you can't ...

If they contain traces of rocks from Mars, then that would suggest they formed from impact ejecta, but if their composition is more like an asteroid, then it could support Kegerreis' model.

Artwork: The impact ... Asteroid Day Prof Morgan pictured with some of the rock samples drilled from beneath the Gulf of Mexico An independent group earlier this year used a global climate model ...

Termed the Cretaceous-Paleogene (also called the K-T and K-P) boundary, the post-impact Earth changed. As the asteroid or comet struck Earth, it vaporized some of the planet’s bedrock ...