Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...

What happens when a star dies depends on its mass. If a very massive star runs out of fuel, it explodes in a huge event called a supernova. But a more modestly sized star, like our sun, will puff up ...

As Poppy’s star continues to rise in the world of heavy metal, the genre-blurring singer isn’t abandoning her past as a subversive performance artist. Far from it, actually. After gaining cult status ...