Harvard professor Avi Loeb claims 3I/ATLAS could be an alien spacecraft. Arizona State University professor Steven Desch is ...

A rare interstellar visitor has entered our Solar System, and it’s behaving in ways that have astronomers both fascinated and ...

"Both hemispheres are darkening," the team explained. "The Northern Hemisphere is darkening at a faster rate." ...

Space scientists look back on three decades of exoplanet discoveries—from rows of massive ‘super-Earths‘ to worlds with ...

Interstellar comet 3I/ATLAS — just the third such object ever confirmed to have entered our solar system — flew past Mars ...

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

A study led by Howard Chen looks to explain what NASA space telescopes are missing in the search for life beyond Earth.

October 2025 is set to be a busy month for astronomers and stargazers. Learn more about the harvest supermoon, passing comet, ...

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 ...

The comet is one of only three of its kind recorded in history. But others think there could be more to this celestial object.

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

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