关于这张图
NASA's Ingenuity Mars Helicopter hovers and rotates over Jezero Crater during its second experimental flight test on April 22, 2021. The footage was captured by the Mastcam-Z imager, a pair of zoomable cameras aboard NASA's Perseverance Mars rover. Altimeter data from the solar-powered helicopter indicates it climbed to its prescribed maximum altitude of 16 feet (5 meters), flew downrange 7 feet (2 meters) and returned, performed several turns while in a hover, and landed. Total flight time 51.9 seconds. Flying in a controlled manner on Mars is far more difficult than flying on Earth. The Re…
