Elon Musk wants to colonize Mars. In fact, the billionaire says it could happen within four years. He also says we could be living in a self-sustaining city on the red planet in the next 20 years.

Is NASA still moonbound, or will the next giant leap mean skipping straight to Mars? Speculation is mounting that the Trump administration may scale back or cancel NASA's Artemis missions following ...

The ripples suggest that the lake was free of ice at one point.

The 47th President of the United States and the world’s richest man have shown they’re in it for the long haul ...

We often forget how wonderful it is that life exists, and what a special and unique phenomenon it is. As far as we know, ours ...

Mars is often seen as a barren, rust-colored wasteland, but NASA’s Curiosity rover has just revealed a surprising burst of ...

The Philippine Mars' final flight ended in Lake Pleasant, Arizona, where the aircraft will be displayed. See photos of the ...

On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

For a brief moment at the end of February, every planet will appear in the night sky simultaneously in a rare celestial ...

Martian clouds are almost always made of dry ice, or frozen carbon dioxide. 95% of the planet's atmosphere is CO2.

Whether Pluto is officially a planet is the least interesting thing about the runt of the solar system, astronomers will tell you 95 years after the discovery of the fascinating and sometimes ...