From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Primitive plants could survive and the sunlight that hits them, while weaker than on Earth, is enough for photosynthesis. However, Mars’ weaker gravity might struggle to hold its new atmosphere. Zach ...

Mars was once home not only to an ocean but "vacation-style" beaches with sun, sand and softly lapping waves, new findings suggest. Researchers now believe that the planet was covered in a huge ocean ...

SpaceX CEO Elon Musk suggested on a Wednesday episode of Senator Ted Cruz's podcast that while humans may not find living aliens on Mars, they could uncover the "ruins of a long-dead alien ...

An alien doorway on Mars, as captured by Mast Camera (Mastcam) onboard NASA's Mars rover Curiosity on Sol 3466 (image courtesy NASA) Scientists and David Bowie have all famously wondered if there is ...

The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...