Live coverage: ExoMars orbiter safely arrives at Mars, lander’s fate uncertain

Intermittent flows that appear on steep slopes on Mars are likely formed by flowing sand, and not water as some scientists previously suspected, according to a new study.

The United Arab Emirates “Hope” probe is now making repeated close flybys of the martian moon Deimos – and snapping spectacular pictures.

The Cassini spacecraft captured captivating images of wispy methane clouds suspended above Titan’s hydrocarbon lakes as the probe headed for its third shot through Saturn’s ring gap Tuesday.