Mars rover Curiosity reaches intriguing transition zone on Red Planet (video)


NASA’s Mars rover Curiosity has rolled into a patch of ground that could shed considerable light on the Red Planet’s climate history.

Curiosity landed inside the 96-mile-wide (154 kilometers) Gale Crater in August 2012, on a mission to assess the region’s past potential to host Earth-like life. The car-sized robot soon found evidence that Gale hosted a habitable lake-and-stream system billions of years ago, and that this environment likely persisted for long stretches.