![](http://www.ecns.cn/hd/2021/04/06/43b07c31402d4fb7a62beb35296ba2ac.jpg)
This photo acquired by NASA on April 1 shows NASA’s Ingenuity Mars Helicopter on the ground behind the Perseverance rover. NASA's Ingenuity mini-helicopter has been dropped on the surface of Mars in preparation for its first flight, the U.S. space agency said. The ultra-light aircraft had been fixed to the belly of the Perseverance rover, which touched down on the Red Planet on February 18, 2021. (Photo/Agencies)
![](http://www.ecns.cn/hd/2021/04/06/fbed870f75284f6584b682767a456899.jpg)
This photo acquired by NASA on April 1 shows NASA’s Ingenuity Mars Helicopter on the ground behind the Perseverance rover. NASA's Ingenuity mini-helicopter has been dropped on the surface of Mars in preparation for its first flight, the U.S. space agency said. The ultra-light aircraft had been fixed to the belly of the Perseverance rover, which touched down on the Red Planet on February 18, 2021. (Photo/Agencies)