From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Astronomers discovered a new moon of Uranus and hundreds of moons around Saturn over the past year, and there may be many ...

Across the Milky Way and beyond, planetary systems appear to fall into a few recurring blueprints, and recent exoplanet ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

A Carnegie-led team of astronomers detected the strongest evidence yet of an atmosphere around a rocky planet beyond our ...

Leaving the solar system behind, this video dives into the staggering distances between stars, galaxies, clusters, and ...

Planetary systems begin in chaos. In their primitive form, many rocky and icy objects are careening through space, smashing ...

Two rare cosmic collisions around the young star Fomalhaut were caught by space telescopes, offering new clues about how planets form.

Hubble reveals the largest planet-forming disk ever seen, Dracula's Chivito, showing a chaotic and uneven environment around ...

Astronomers using NASA's Hubble Space Telescope have imaged the largest protoplanetary disk ever observed circling a young ...

CAPE CANAVERAL, Fla. — The moon and sun share top billing in 2026. Kicking off the year’s cosmic wonders is the moon, drawing ...

Early Mars seems to have had a protective atmosphere and liquid water in the form of oceans, rivers, and lakes. It may also ...