New research finds that despite large rivers and seas of liquid methane, Saturn's moon Titan seems mostly devoid of river deltas, raising new questions about the surface dynamics on this alien world.

The Moon seems to be keeping things uneven when it comes to water. A recent study of samples scooped up from the far side and ...

Mars Express captures images of Acheron Fossae, revealing the Red Planet’s split terrain—ancient cratered highlands and ...

For decades, scientists have wondered how the moon can have water. It’s dry, airless, and lacks an atmosphere, so the ...

Titan, Saturn's largest moon, is a fascinating world that is unique among moons of the outer solar system. It's shrouded in a ...

The European Space Agency (ESA) just released some new snapshots from its Mars Express orbiter that detail the dynamic ...

Soil and rocks returned from the moon's mysterious far side suggest it may be drier than the side constantly facing Earth.