Planetary Formation
Meteorites Reveal Mars’ Past: Molten Surface, Thick Atmosphere
If Mars ever had water flowing on its surface, as the many canyons and riverbed-like features on the Red Planet…
16 years ago
Earthlike Planet Forming Around a Distant Star
Astronomers believe the Earth formed out of a ring of gas and dust surrounding the Sun. Over the course of…
17 years ago
Gas Giants Gobbled Up Most of Their Moons
Even though our Solar System's gas giants vary widely in size and mass, they do have something in common. Each…
18 years ago