Planetary science is the study of the celestial bodies that orbit stars, with a particular focus on our own solar system. This includes studying the formation and evolution of planets, the moons ...

The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity — or not.

In January 2025, Venus, Mars, Jupiter, Saturn, Uranus and Neptune were all visible in the night sky. And in February, 2025, Mercury will join the fun, with all seven of our planetary neighbors visible ...

The findings were published March 6 in The Planetary Science Journal. Interstellar objects are astronomical material, like asteroids or comets, not gravitationally bound to a star. They can come ...