Nasa's Ingenuity Mars helicopter has completed the first powered, controlled flight on another planet, the space agency has announced.
The small helicopter successfully took flight on the red planet on Monday, hovering in the air at about 10 feet, before descending and touching back down on the Martian surface.
The message "Ingenuity has performed its first flight - the first flight of a powered aircraft on another planet" was met by cheers and applause at mission control.
Video showed Ingenuity hovering above the planet's surface.
Ingenuity will attempt additional experimental flights, which will involve travelling further distances and increasing altitudes.
All together the helicopter will aim for up to five test flights within a 30 Martian-day (31 Earth-day) demonstration window.
It is designed to be mostly autonomous, so Nasa will not be able to control the helicopter remotely.
This is because of the distance between Earth and Mars - it takes more than 11 minutes to get a radio signal back to Earth.
The space agency said it will not be able to look at engineering data or images from each flight until well after the flight takes place.