If nonliving materials can produce rich, organized mixtures of organic molecules, then the traditional signs we use to ...

Signals from a distant world have pushed the search for alien life out of science fiction and into the realm of testable ...

Humans have long imagined life on Mars, but what if the red planet actually delivered life to Earth in the first place?

Some scientific breakthroughs may be lost to time due to scandal and redaction, while others are simply a case of waiting for ...

The goal should be a new golden rule linking the search for life elsewhere to the spread of life beyond the bounds of Earth.

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...

Amirali Aghazadeh receives funding from Georgia Tech. When NASA scientists opened the sample return canister from the OSIRIS-REx asteroid sample mission in late 2023, they found something astonishing.

The best reason to send humans to Mars isn’t for guts or glory—or the construction of colonies to safeguard against existential Earth-bound risks. Instead it’s to answer a single, simple question: Is ...

The moon once dismissed as the solar system’s most hostile environment may now sit directly in the path of an object that defies conventional explanation. Two decades of scientific certainty just ...