Recently, An USA space group “NASA” announced that they will send a Mars helicopter. It scheduled to launch in 2020, and touch down on Mars in 2021. The helicopter will do some test on Mars to make sure whether humans could survive on it or not. “The Mars helicopter’s body is small and light, but it’s blades are mighty. The atmosphere on Mars is very thin, only 1% as dense as Earth’s, Mars helicopter needs strong blades to push enough air so that it could fly. The Mars helicopter has already done the ground breaking tests.” (NASA.gov).
I think it is a hopeful project, Because if it success it would help us a lot on discovery and finding new accommodation. And if this project meet the failure, this event would pave the way for future missions!