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

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

Astronomers this week confirmed the discovery of an interstellar object racing through our Solar System – only the third ever ...

NASA’s New Horizons spacecraft has successfully demonstrated a revolutionary method for deep space navigation, as the probe ...

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth ...

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 ...

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

These things take millions of years to go from one stellar neighborhood to another, so this thing has likely been traveling ...