Planetary Society CEO Bill Nye spoke at a "Save NASA Science" press conference on the steps of the U.S. Capitol building in ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

SpaceX will conduct the 11th test flight of its Starship rocket Monday amid concerns that the United States is losing the ...

The growth spurt hints that the free-floating object evolves like a star, providing clues about rogue planets’ mysterious origins.

One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the ...

Test your knowledge on all things science with our weekly, free crossword puzzle! If you enjoyed this, see how quickly you ...

Some habitable worlds orbiting dead stars could be kept alive for aeons thanks to a quirk of Einstein’s theory of gravity ...

"It was just a matter of time before we found them." ...

The record-breaking event is providing insight into how these strange objects form.

On October 6 1995, at a scientific meeting in Florence, Italy, two Swiss astronomers made an announcement that would transform our understanding of the universe beyond our solar system. Michel Mayor ...