( Nanowerk News) For millions of years, a fragment of ice and dust drifted between the stars—like a sealed bottle cast into ...

The European Space Agency also hoped to observe the interstellar object during its close approach to Mars using two ...

SWAN is best viewed in the Southern Hemisphere. The comet crossed into the Libra constellation on September 28, and will make ...

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

The uncommon interstellar visitor, comet 3I/ATLAS, is captivating astronomers worldwide as it races through our solar system ...

An interstellar comet, 3I/ATLAS, is speeding through our solar system in 2025, marking only the third such visitor. Traveling ...

New research suggests that planets outside our solar system contain far less surface water than scientists once believed.

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

In the 30 years since the discovery of 51 Pegasi b, more than 6,000 planets outside our Solar System have been catalogued. Two modern-day explorers explain how.

The sneaky asteroid is from the Apollo cluster, a group of near-Earth asteroids that can occasionally get pretty close to us. It sped past at a break-neck 46,700 miles per hour, while it's believed to ...