Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of ...

Add Yahoo as a preferred source to see more of our stories on Google. A gray exoplanet in space near a red dwarf star toward the top right. A flare erupts off the star. Astronomers have discovered an ...

Arizona has a new state emblem — and it's one that has been a source of controversy among scientists for years. Gov. Katie Hobbs signed a bill on Friday designating Pluto — once considered the ninth ...