That killed T. rex? Berkeley team says it was it was a space impact after all. Feb. 7, 2013 — -- Go digging with dinosaur hunters and they will show you that the last of the Cretaceous beasts ...

Some researchers, including well-known author Graham Hancock, have long proposed that a giant 'Doomsday comet' passed through Earth's atmosphere ... coincided with two significant events: the sudden ...

The end of thePleistocene, marked by the Younger Dryas (YD) onset around 12.8 thousand years ago, witnessed the sudden extinction of many North American megafauna and the collapse of the Clovis ...

Until recently, I assumed that the term “extinction burst” referred to the impact of the comet, asteroid or other catastrophic space rock that wiped out the dinosaurs. Turns out the expression ...

Humans have wiped out hundreds of species — with many more on the brink or experiencing large declines in population. Some scientists have argued that we have entered a “sixth mass extinction” event ...

We may not be living through Earth’s sixth mass extinction event ­­— at least not yet. That’s the conclusion of a new analysis of plant and animal extinctions published September 4 in PLOS Biology.

The ExoMars orbiter’s Colour and Stereo Surface Imaging System captured faint images of the comet’s coma, the glowing cloud ...