NASA's Ingenuity Mars helicopter successfully completes its most challenging flight yet on red planet

NASA's Ingenuity Mars Helicopter has pushed its limits to successfully complete its ninth and "most challenging" flight since it first took off on the Red Planet, US space agency NASA has said. The mini helicopter flew to the Red Planet on February 18, while being attached to the belly of NASA's Perseverance rover. It was now airborne for 166.4 seconds -- 2.8 minutes -- and flew at a speed of 5 metres per second, NASA said.