If life ever existed on Mars, it might have looked like microfossils right here on Earth.

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

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.

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

If life exists elsewhere in the universe, researchers at the University of Washington are finding the clues on Earth to help ...

The Trump administration's revocation of a scientific finding that climate change is a danger to public health is likely to affect communities of color the most.

US Secretary of State Marco Rubio addresses the Munich Security Conference ...

What began as a routine mission to the Moon quickly turned into one of the most dangerous moments in space exploration history. After a catastrophic failure crippled the spacecraft, the crew found ...

Gem & Jam — which returned after organizers took time to regroup last year — is where the older hippie heads and aficionados ...

A ‘smiling’ fossil has gone viral after being discovered by a tourist on Holy Island.

President Trump touts economic gains and border security in second-term State of the Union, setting the stage for midterm ...