"When running an accident investigation from 100 million miles away, you don't have any black boxes!" NASA's Håvard Grip said.

Relying on remote data, including photographs taken after the flight, the investigators believe that “navigation errors created high horizontal velocities at touchdown,” which most likely resulted in Ingenuity experiencing a “hard impact on the sand ripple’s slope,” causing it to pitch and roll.

After over 70 flights, the Ingenuity helicopter — the first craft to ever make a powered, controlled flight on another planet — crashed in the Martian dunes in January 2024. But its unexpected achievement (engineers hoped it might make five flights) has prompted the conceptual design and planning for what the agency calls its "Mars Chopper."