(via Astrum) The future of NASA is changing. A proposed budget cut, the largest in the space program’s history, threatens to cancel missions and gut decades of progress. What happens when the world's ...

Add Yahoo as a preferred source to see more of our stories on Google. A skeleton of a Dodo. - Kirsty Wigglesworth/AP Humans have wiped out hundreds of species — with many more on the brink or ...

Earth has experienced five documented mass extinctions to date. With the sixth extinction around the corner, scientists are looking to the past to try and understand how life continues on after one of ...

For eons, Earth has experienced dramatic shifts, punctuated by five catastrophic mass extinction events that wiped out vast swathes of life. Now, a growing chorus of scientists is sounding the alarm: ...