Scientists are trying to understand how complex life emerged on Earth about 2 billion years ago. Our microbial ancestors could be the key.

Government officials have said little about Trump’s most recent social media post on the matter. The president cited “tremendous interest” in the files, whatever they might contain. Perhaps the most ...

Microbes blasted off a planet by an asteroid strike may survive the journey to another world, including Earth, according to a ...

Hardy bacteria in a lab survived pressures comparable to an asteroid strike on the red planet, suggesting a hypothetical scenario in which our planet was seeded with life.

President Donald Trump criticized Barack Obama for his comments on aliens. Then, he said we should release more files. Joe Biden signed disclosure bill.

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 ...

Find out which sci-fi shows are the best for rewatches based on their compelling narratives and character development, from Doctor Who to Dark.

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 ...

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.

It sounded like the former president was having an X-Files moment. Asked on a podcast whether aliens were real, Barack Obama replied with Fox Mulder certainty. "They're real, but I haven't seen them," ...