
More than a century after the first powered flight on Earth, NASA intends to prove that it is possible to fly a machine on another planet.ย Transported aboard the Mars 2020 mission, which arrives at its destination on Thursday, the small Ingenuity helicopter will have to accomplish a feat: rise in air with a density equivalent to only 1% that of the Earthโs atmosphere.
Ultralight helicopter
Ingenuity actually looks more like a big drone.ย The main challenge for engineers: to make it as light as possible, so that it can lift itself in extremely light air.ย It ultimately weighs only 1.8 kg.ย It is composed of four feet, a body and two superimposed propellers.ย It measures 1.2 meters from one end of a blade to the other.ย The propellersโฆ
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