According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

Some planets are so massive they break the rules of science. This documentary uncovers the largest worlds ever discovered in ...

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy clusters, and dark matter.

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

A team of astronomers took an actual photo of the first-known baby planet discovered in a gap of a star's protoplanetary disk.

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

These rules make Star Wars feel like Star Wars instead of like some other fictional science fiction universe. Star Trek, for ...

Astronomers have observed a massive growth rate in a free-floating rogue planet that’s gobbling up gas and dust at a record ...

Dune: Awakening lead says some "people love the game, some people hate the game," but Funcom is "hoping more" will get into ...

Why Sagittarius B2 produces so many stars in comparison to the rest of the galactic center has remained an enduring mystery ...

About 620 light-years from Earth, a gigantic rogue proto-planet is currently devouring 6.6 billion tons of dust and gas per ...