Following is a transcript of the video. This helicopter has dual-crossing rotors for increased precision The K-MAX uses a unique double rotor system where the two rotors cross each other.

Although the helicopter, aptly named Ingenuity ... and a more traditional multicopter is the choice to make it a dual-rotor design. There would have been no way to go with a quadcopter design ...

Last week, one of the most innovative missions in space exploration came to a bitter end. NASA’s famously successful Ingenuity rotorcraft — the 3.5-pound helicopter-like robot collecting samples on ...