The number of blades a helicopter has is very important because it speaks to what the helicopter was designed to do. For example, adding more blades can significantly improve a helicopter's ...

Last month, NASA’s Ingenuity helicopter finally died after years of faithful service on Mars. The spunky little chopper crashed on January 18, during what proved to be its 72nd and final flight.

NASA is preparing for a future in the skies of Mars. After the massive success of the agency's Ingenuity Mars helicopter (above), engineers are working on the next generation of interplanetary drones.

The blade landed some 50 feet (15 meters) from the helicopter on Jan. 18. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The blade was broken — ...