White dwarfs are the final stop for stars that aren’t massive enough to go out in a supernova. Think of them as the retirement phase for the vast majority of stars in our universe. When a star ...

Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.

"This was the first star we've seen that is right in the middle of its 'teenage' phase." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.