(via SciShow) Why doesn't gold tarnish? A simple answer might be that it's a so-called "noble metal"—its atoms don't like to ...

A laboratory worker at the Irkutsk Anti-Plague Research Institute in Siberia, Russia, has died just days after falling ill ...

Suppose an alien civilization discovers Earth and decides to investigate. Before it chooses a landing site or considers how ...

In the early 20th century, it was discovered there was a point in the fossil record where most European mammals just…vanished ...