NASA skickar en helikopter till Mars [2020]

Nasa will send helicopter to Mars to test otherworldly flight

The Mars Helicopter will be bundled with the US space agency's Mars rover when it launches in 2020.

Its design team spent more than four years shrinking a working helicopter to "the size of a softball" and cutting its weight to 1.8kg (4lbs).

It is specifically designed to fly in the atmosphere of Mars, which is 100 times thinner than Earth's.
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The helicopter's two blades will spin at close to 3,000 revolutions a minute, which Nasa says is about 10 times faster than a standard helicopter on Earth.
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While the tiny craft is being called a helicopter rather than a drone, there will be no pilot.

It will be flying almost 55 million km (34 million miles) from Earth, too far away to send a remote control signal.