Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing over a period of roughly 30 million years, but that would come to a halt ...

Understanding the mass of the neutrino might lead us to the next theory beyond the standard model. A paper announcing the results is published in the journal Science.

They argue for “Anthropocene”—from anthropo, for “man,” and cene, for “new”—because human-kind has caused mass extinctions ... up velocity in elite science circles: It appeared ...

The result, published in the journal Science, does not define the exact mass of a neutrino, just its upper limit. But the finding helps bring physicists closer to figuring out just what is wrong ...

For scientists and conservationists, knowing how species survive planetary crises can lead to more effective protection of vulnerable species.