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.

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

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

Tracking the footsteps provides modern scientists a view into ancient life.

Fossils are remarkable for their ability to viscerally connect us with long-lost life. The bulk of a Tyrannosaurus rex skull, ...

These researchers captured photos that wouldn’t look out of place in an art gallery and used them to confirm new species of comb jellies never recorded in Colombia before.

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

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

The former director of nuclear programs at Oak Ridge has pleaded guilty to sexual exploitation of a child in both Tennessee and South Carolina.

New method reveals chemical signs of early microbial life in ancient Earth rocks, showing photosynthesis evolved much earlier than believed.

Thousands of alien species could invade the Arctic, warns a new study. Warmer temperatures and more tourists make it easier ...

SIGNS of an alien planet that’s about the same size as Earth have been picked by up a Nasa telescope. Scientists say it might ...