For the first time in more than five years, humanity has launched a mission to Mars — but it won't be arriving at the Red Planet anytime soon. NASA's twin ESCAPADE probes launched Thursday (Nov. 13) on the second-ever flight of Blue Origin's powerful New Glenn rocket.

Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere, which kept it warm enough to support flowing water on its surface. So, what happened to the Red Planet, and could it happen to Earth?

A new analysis of data from NASA's Mars Reconnaissance Orbiter reveals that the majority of the Red Planet's dark "slope streaks" did not form as most researchers previously assumed.

NASA's giant Mars Antenna failure hinders spacecraft communication and asteroid studies amid the federal government shutdown.