When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's habitable zone. Water is a key ingredient for life, and on a planet too close to ...

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's ...

A colossal comet from another star is ripping through our solar system right now. Designated 3I/Atlas, this behemoth is up to ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Voyager 1 and 2 traveled billions of miles to reach the heliopause, showing how the Sun's magnetic influence marks the ...

Astronomers have detected a storm on a star other than our sun for the first time, revealing an explosion so violent it could potentially strip away planetary atmospheres.

Astronomers have made a significant breakthrough in space exploration by discovering over 6,000 planets outside our solar system, known as exoplanets. This milestone has not only expanded our ...

A mysterious interstellar comet — just the third such object ever confirmed to have entered our solar system — streaked past Mars last week. A spacecraft in orbit around the red planet had a front-row ...