By Andrew Paul Published Mar 31, 2025 3:26 PM EDT A unique set of risks and challenges await the first astronauts on Mars. Deadly solar radiation, nighttime temperatures regularly dropping lower ...

Clouds of water ice can be seen drifting over ancient volcanoes on Mars. But billions of years ago, the surface was more temperate. Rock samples could tell us whether it supported ancient life.

Mar. 24, 2025 — The longest organic molecules identified to date on Mars have recently been detected. These long carbon chains, containing up to 12 consecutive carbon atoms, could exhibit ...