Orbital dynamics show that President Trump’s pledge to land astronauts on Mars couldn’t happen until 2029 at the earliest.

"It's been such a puzzle that there was liquid water on Mars, because Mars is further from the sun, and also, the sun was ...

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

Understanding chorus waves is vital, as they create fast-moving, highly energetic electrons (known as killer electrons) that ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Astronomers have retracted the discovery of a new asteroid after realizing the object was the remains of Elon Musk's Tesla ...

What does an ancient lava tube in the Canary Islands have in common with space exploration? For our robotics teams, it turns ...

Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

UK researchers have confirmed the existence of a “super Earth” located 20 light-years away that could reveal the existence of ...

Though it's a cold, dead planet, Mars still has its own natural beauty about it. This image shows us something we'll never ...

A collection of Martian rocks could reveal details about potential past life on the Red Planet – but first NASA has to get ...

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...