Might sinuous ridges carved out across the ancient highlands of Mars hold the secret to a vanished age of rivers and rain on the Red Planet? Over 15,000 kilometers of such fluvial sinuous ridges, or ...

STARBASE, Texas — During a presentation, SpaceX CEO and founder Elon Musk shared how he plans to use Starship to reach the planet Mars, and how in a few short years, there is a chance humans ...

NASA's Mars Reconnaissance Orbiter started circling the planet in 2006, and since then its camera has been busy capturing gorgeous — and scientifically valuable — images of Mars.