关于这张图
This image was taken after the first flight of NASA's Ingenuity Mars Helicopter — and the first powered, controlled flight on another planet. It was captured by Mastcam-Z, a pair of zoomable cameras aboard NASA's Perseverance Mars rover, on April 19, 2021. Flying in a controlled manner on Mars is far more difficult than flying on Earth. The Red Planet has significant gravity (about one-third that of Earth's), but its atmosphere is just 1% as dense as Earth's at the surface. Stitched together from multiple images, the mosaic is not white balanced; instead, it is displayed in a preliminary cal…