Cause of mysterious dark streaks on Mars found

ExoMars discovers new gas and traces water loss on Mars. Sea salt embedded in the dusty surface of Mars and lofted into the planet's atmosphere has led to the discovery of hydrogen chloride. The spacecraft is also providing new information about how Mars is losing its water.

NASA is about to land a helicopter on Mars that might glow in the dark

Striking NASA animation reveals the harrowing descent to Mars that the Perseverance rover is about to attempt