This wasn't the first mass extinction in our planet's history ... also known as the K-T extinction) left an indelible mark on ...

New research suggests the violent explosions of dying stars may have caused two of Earth’s biggest mass extinctions millions ...

Some biologists conclude that humans owe our present dominance to a mass extinction -- the K/T event that saw the end of the dinosaurs and cleared the way for mammals to diversify into all the ...

Scientists have discovered levels of iridium 30 times greater than average in the Cretaceous/Tertiary (KT) boundary, the layer of sedimentary rock laid down at the time of the dinosaur extinction.

The most dangerous parts of a supernova explosion are the outputs like X-rays and gamma rays. Even though they only share a ...

This story appears in the October 2019 issue of National Geographic magazine. Some scientists contend that we’re heading toward what would be the sixth mass extinction in the history of life on ...

Get Instant Summarized Text (Gist) The Permian mass extinction, 252 million years ago, was linked to a 10°C rise in global temperatures due to massive volcanic CO 2 emissions. This led to climate ...