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

The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came ...

In the 30 years since the discovery of 51 Pegasi b, more than 6,000 planets outside our Solar System have been catalogued.

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...

The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...

Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

In our own solar system, there are pretty good odds that you could stand on the surface of an asteroid and not even be able ...

Astronomers have been fascinated after spotting an object earlier this year that came from interstellar space as is now hurtling through our inner solar system. Since then, they've been using powerful ...

About 4.6 billion years ago, our corner of space was basically just a boring cloud of gas and dust floating around, and then something amazing happened that turned this mess into the planets, moons, ...