Search for Life

Astronomers have discovered that sulfur may be a key to helping us narrow down our search for life on other planets.

The idea that life on Earth arose through a series of improbable "hard" evolutionary steps may be misjudged, according to a new paper that says our Earth had a big say in matters.

If we're looking for life as we don't know it, the best solvent out there may be concentrated sulfuric acid — the stuff that's floating around in the clouds of Venus.

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing through enormous volumes of data to look for peculiar signals.

The Habitable Worlds Observatory is a flagship NASA telescope that could answer the ultimate question.

Scientists think it's possible that life cells from Earth could've been transferred to Venus, thanks to asteroid impacts over the last few billion years.

A newly discovered way for oxygen to form in carbon-dioxide-rich atmospheres of exoplanets could help guide scientists' search for alien life.

Ever since the discovery of methane on Mars, scientists have wondered if the Red Planet might harbor life. Now, researchers know where to look: deep under the surface of a broad Martian plain.

What should happen in 2025 to move the UAP/UFO story forward? Are we at a dead-end? Conversely, is the coming year one of "full disclosure?"