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 ...

Is It Cheaper to Fix a Cavity or Get a Crown? Dentists Explain Why Early Treatment Lowers Long-Term Costs Alexandria, ...

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.

Life on Earth may not have started here at all. A scientist says alien intervention is unlikely but still possible, reshaping the debate on our true origins.

Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

But the real truth is that alien life on other planets could be even stranger than floating balloons or amorphous organisms ...

The odds are that life is out there – but rather than little green men, it may look more like hydrothermal vent tubeworms ...