When you buy through links on our articles, Future and its syndication partners may earn a commission. An image of Cassiopeia A (Cas A), the remnant of a massive star that exploded about 300 years ago ...

One reason for the decline in extinction rates is the growing momentum of conservation efforts. Multiple species have been ...

Violent supernovas may have caused two of Earth’s largest mass extinctions that have never been completely explained, according to a theory put forward in new research.During the final stages of a ...

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 ...