While aliens in science fiction hop between planets on vast spaceships, scientists say real-life extraterrestrials might take a far less glamorous means of transport.

NASA's Curiosity Mars rover discovered these bumpy, pea-sized nodules while exploring a region filled with boxwork formations—low ridges standing roughly 3 to 6 feet (1 to 2 meters) tall with sandy ...

A new NASA analysis concludes that it is "reasonable to hypothesize" that living things could have formed the odd organic ...

NASA's Mars Curiosity rover has been exploring a curious geological formation made up of ridges that look like spiderwebs from space.

Gypsum is a soft, translucent sulfate mineral that allows just enough light to penetrate for photosynthetic organisms to survive inside, while also protecting them from being desiccated or exposed to ...

America was winning the race to find Martian life. Then China jumped in. In July 2024, NASA’s Perseverance rover came across a peculiar rocky outcrop on Mars covered in strange spots. On Earth, these ...

Why it matters: While not evidence of life, these discoveries show that ancient Mars had complex organic chemistry, ...

Aliens exist – they just haven't visited Earth, a NASA veteran has claimed. Dr Gentry Lee has worked at the US space agency since 1968, when he first got involved with the Viking mission to Mars. He ...

If you think auroras on Earth are a strange and mesmerizing sight, that's nothing like what occurs on the perplexing world of Uranus.

Astrobiologists say we could find evidence of microbial life within the next 10–20 years. What does that mean? Where are we ...

United States President Donald Trump says he’ll release government files relating to alien and extraterrestrial life.