A NEW review says that the asteroid impact theory of how the dinosaurs died is still the best explanation.
There are several theories about how the dinosaurs were wiped out, and a team of 41 experts from across the world has looked at them all again.
Writing in Science, they say that evidence for the Chicxulub impact in Mexico 65 million years ago is very good. The idea was first suggested 30 years ago, and a 200km-wide crator was discovered in 1991 that backed it up.
Experts say that the asteroid was 12km wide, which is the same size as the Isle of Wight. It weighed around three trillion tonnes and hit the Earth at 20 times the speed of a rifle bullet.
The impact released about a billon times more energy than the atomic bomb dropped on Hiroshima in World War II.
By Chloe Yr 6