Follow along as NASA launches the Mars 2020 Mission, perhaps the most ambitious hunt yet for signs of ancient life on Mars. "Looking for Life on Mars" from NOVA l PBS is now streaming on the PBS Video app. | PBS

This footage shows NASA’s Perseverance rover descending through the Martian atmosphere and touching down on Mars. From the fiery entry to the parachute deployment and sky crane maneuver, it’s the first time humanity has seen a rover land on another world in such detail, turning a few terrifying minutes into history. | SpaceEve