Red dwarfs make up the vast majority of stars in the galaxy. Such ubiquity means they host the majority of rocky exoplanets we’ve found so far – which in turn makes them interesting for ...

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.

Around 1.7 billion years ago, eukaryotes—the building blocks of complex life—first appeared on Earth, and now scientists have ...

While aliens in science fiction hop between planets on vast spaceships, scientists say real-life extraterrestrials might take ...

Debates over extraterrestrial life and unidentified flying objects have taken on a new political dimension in the United States.

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 ...

NASA has given a hilarious response to President Trump following his demand for UFO files - and it dashes hopes of an ...

A vaccine usually trains your immune system to recognize one target. Here, the target is basically “anything that doesn’t ...

Officials confirm a highly infectious virus and bacterial infection killed dozens of captive tigers in northern Thailand in recent weeks.

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

The Canadian Institute for Health Information says pneumonia hospitalizations rose by almost one-third across Canada last year.