Former U.S. President Barack Obama has clarified comments he made about alien life on a podcast over the weekend.

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

Planet K2-18b, an apparent water world 124 light years away, has been seen as a promising location in the search for aliens, ...

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

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...

More than 2,500 alien plant species could find suitable conditions in the Arctic, especially in northern Norway and Svalbard.

Arnie said, "Get your a* to Mars", but is it really a good idea? We asked the experts about our Martian future.

The bony facial protrusion might be an evolutionary byproduct that resulted from changes to other parts of the skull, according to a new study ...

While idea may violate Occam’s razor, “it remains a speculative but logically open alternative,” says biologist Robert Endres.

Preeclampsia, a complication of pregnancy that involves high blood pressure, could have led to a decline in Neanderthals' fertility, a new study suggests.