The American space agency has successfully flown a small helicopter on Mars.
The drone, called Ingenuity, was airborne for less than a minute, but Nasa is celebrating what represents the first powered, controlled flight by an aircraft on another world.
Confirmation came via a satellite at Mars which relayed the chopper's data back to Earth.
As exciting as the entire Perseverance mission to Mars is, one of the events most looked forward to by us Earthlings must be the first flight of Ingenuity. After conducting numerous checks and double-checks, the Perseverance team has set April 8 as the date on which they hope to attempt the first controlled powered flight on another planet.