What was originally thought to be a planet orbiting the Fomalhaut star was probably just the fallout of a wild collision.

Shining in the constellation Gemini near the bright stars Pollux and Castor, Jupiter's opposition is the best time to see the ...

Discover why the solar system's planets are arranged as they are, shaped by formation conditions and planetary migration.

Eight planets, hundreds of moons, hundreds of thousands of asteroids, and billions of comets orbiting our Sun make up our ...

A four-planet system reveals remarkable insights about how planets form and how they change during their lifetime.

Superionic water—the hot, black and strangely conductive form of ice that exists in the center of distant planets—was ...

If scientists are able to inspect it in person, and they find that Mars was indeed once alive with microbes, we would know ...

The solar system’s largest planet shines bright as the Moon wanes and Saturn’s moons dance in the sky this week.

Many astronomical events, such as meteor showers, run by calendrical timings as well. But our moon and the other planets move ...

Out in the depths of space, somewhere in between Mars and Jupiter, is a newly discovered asteroid that's breaking records.

(THE CONVERSATION) After a string of dramatic failures, the huge Starship rocket from SpaceX had a fully successful test on Oct. 13, 2025. A couple more test flights, and SpaceX plans to launch it ...

Mars, often depicted as a barren red planet, is far from lifeless. With its thin atmosphere and dusty surface, it is an ...