Alien Life | Astronomy.com

SPHEREx in space (artist's concept)

Alien Life, Cosmology, Robotic Spaceflight

SPHEREx launches to conduct a cosmic census

Venus as seen by Mariner 10

Alien Life, Solar System

Strange microbes on Earth might help us understand life on Venus

Alien Life, Observing

You’re almost certainly not being visited by aliens

Artist's impression of Kepler-1649 c

Could deuterium be the key to finding aliens?

Illustration of DNA

How we might look for life in the universe — even if we can’t recognize it

Alien Life, Cosmology

Dark energy sheds light on life in the cosmos

Ceres as imaged by Dawn

Alien Life, Solar System

Short-lived organics on Ceres hint at a past ocean — and conditions ripe for life

Alien Life, Science

Why we aren’t alone in the universe — but might as well be

Cheyava Falls rock on Mars

Alien Life, Science, Solar System

Did Perseverance find hints of ancient martian life?

An artist's conception of the young Earth being bombarded by asteroids. Scientists think these impacts could have delivered significant amounts of organic matter and water to Earth. Credit: NASA.

Alien Life, Science, Solar System

Evidence grows that meteorites, comets could have brought essentials of life to early Earth

Lecture: Can we recognize intelligent life in the universe?

Exoplanets, Science

Which exoplanets could host life?