Stars don't form out of nothing, but tracking the gas and dust that do eventually form stars is hard. They float around the ...

The comet 3I/ATLAS is the third confirmed interstellar object and is likely 3 billion years older than our own solar system.

The newly discovered space rock may be older than our entire solar system, and you may get the chance to see it ...

How does a 15-kilometer-wide comet, moving at 152,000 miles per hour, slip into our solar system undetected until a global ...

The dream of traveling to distant stars and colonizing other worlds has captured human imagination for centuries. Yet when we confront the reality of cosmic distances, that dream feels both ...