Why it's so special: These odd, fan-like features on the surface of Mars are geysers of gas and dust near the planet's south ...

A Mars image shows a strange square formation. Some think it's artificial, but experts suggest natural causes.

With an estimated 200 billion trillion stars in the observable universe, the existence of other technological species is highly likely, potentially even within our Milky Way galaxy.

Just above the moon will be Mars, shining with a steady orange glow. Both the moon and Mars will be in the Gemini ...

Data from the Mars Express orbiter has been used to create a visualization of "a vast system of deep and steep valleys that ...

NASA's Mars rover that's exploring the planet and conducting research, including picking up samples for analysis back on Earth, found a "texture unlike anything we've seen before". The Perseverance ...