In the vast, quiet theatre of deep space, not many things capture the human imagination like a traveler from another world.

Did an alien spacecraft just fly by Earth? That’s the question a lot of people, including Harvard astrophysicist Avi Loeb, are asking right now. A massive interstellar object called ...

We've all grown up dreaming of aliens landing on the Earth or laser beaming across the sky; well, either way, it's sci-fi and ...

Hypervelocity stars have, since the 1920s, been an important tool that allows astronomers to study the properties of the ...

The interstellar comet 3I/ATLAS is just days away from coming as close to Earth as it will ever get. Here's how you can track ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Astronomers have begun a first-of-its-kind search for signs ...

The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

The best time to view the Milky Way in the Northern Hemisphere is from March to September. The Milky Way, our home galaxy ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. When will the Milky Way collide with the Andromeda Galaxy?