The newly discovered interstellar visitor is just the third of its kind and fascinates astronomers who hope to learn from it ...

Astronomers manning an asteroid warning system caught a glimpse of a large, bright object zipping through the solar system ...

Solar systems mostly keep to themselves. What’s ours is ours and what’s not is not. Stars are simply too far from each ...

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Astronomers have confirmed that a recently spotted object is an interstellar visitor, and appears to have come from the ...

This emission is strongest under conditions which are intermediate between those in the interior of nebula and those in the dense cloud.

In April, scientists announced that they had used NASA’s James Webb Space Telescope to find a potential signature of alien life in the glow of a distant planet. Other scientists were quick to ...