Astronomers have found GJ 251 c, a rocky planet. It is a super-Earth located only 18 light-years away. This planet is in its ...

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

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of ...

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, ...

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its nebular gas had been consumed—Earth's solar system and its planets looked more ...

Over the past seven decades, thousands of sophisticated spacecraft have been launched on ambitious missions to look down on ...

What Makes Our Solar System Special? SNL’s cold open mocks Trump, Hegseth in 51st season premiere He made an ‘illegal' film in Iran. Now the U.S. government is preventing him from coming to the Bay ...

Dust brought back to Earth by China's Chang'e-6 mission contains rare meteorite relics that could change our understanding of sources of water and other life-essential ingredients in our solar system.