The impactor believed to have wiped out the dinosaurs and other life forms on Earth some 65 million years ago has been traced back to a breakup event in the main asteroid belt. A joint U.S.-Czech ...

Boulder, Colo. — Sept. 6, 2007 — The impactor believed to have wiped out the dinosaurs and other life forms on Earth some 65 million years ago has been traced back to a breakup event in the ...

The Chicxulab asteroid, which smashed into the Gulf of Mexico 65 million years ago with devastating results, put paid to the dominance of the dinosaurs - although by that time some had already ...

Two asteroids that were almost as big fell to Earth 35.65 million years ago, ... The events took place within 25,000 years of each other. One asteroid's diameter was between 5 and 8 kilometers ...

“About 65 million years ago, at the end of the Cretaceous Period, a wayward Apollo-type asteroid ploughed into our planet and was responsible for wiping out the dinosaurs and many other forms of ...

Learn about two major asteroid impacts from 3.5 million years ago that may not have had lasting environmental effects.

At the end of the Cretaceous Period 66 million years ago, an asteroid the size of a city collided with Earth. The Chicxulub impactor, as it is called, was somewhere between 10 and 15 kilometres in ...

Popigai in Siberia, the result of an asteroid strike 36 million years ago, is one of the largest and most well-preserved impact craters on Earth. (Image credit: ...

Chicxulub is the asteroid impact that wiped out the non-avian dinosaurs and many other living organisms across the planet 66 million years ago – but it was not the last major impact.