Astronomers are monitoring an object headed our way that may have wandered over from another star system.Scientists have ...

All eyes are on Comet 3I/Atlas as astronomers worldwide chase the exotic ice ball through our solar system ...

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

The newest visitor is 416 million miles (670 million kilometers) from the sun, out near Jupiter. NASA said the comet will ...

Mars, a planet once capable of sustaining liquid water and harboring flowing rivers, today stands as a frozen desert. For ...

By discovering carbonate rocks, NASA's Mars rovers may have unlocked the key to understanding the fate of the Red Planet's climate.

One of the great unsolved problems in modern planetary science is written on the surface of Mars. Mars has canyons that were ...

Curiosity finds strange boxwork ridges on Mars that hint at ancient underground water. Scientists are now drilling for ...

In this week’s episode of Space Minds David Ariosto sits down Nathalie Cabrol, Director of the Carl Sagan Center at the SETI Institute who explains why the Red Planet may hold answers about ...

The Mars rover found geological formations in Gale Crater showing how water percolated beneath the surface, and ...

Scientists had hypothesized before the rover arrived that the peculiar ridges formed with the last trickles of water in the ...