New evidence from Martian valley networks confirms a gradual climate shift from warm and wet during the Noachian period, ...

For the first time, scientists have mapped vast, continent-scale river drainage systems on Mars — ancient networks that may ...

NASA has lost contact with one its three spacecraft orbiting Mars, the agency announced Tuesday. Meanwhile, a second Mars ...

Mars has a new showpiece for planetary scientists, and it looks uncannily like a butterfly frozen mid-flight. A fresh set of ...

This sea arch in Mallorca, Spain, looks like a natural bridge. Formed over time by erosion and waves. Samuel Alito sits out ...