Houston, Ingenuity has a fatal problem

After three years and 72 flights, NASA’s Ingenuity rotorcraft was declared unfit for flight, ending the historic Mars mission. On January 18, the space agency said the helicopter had sustained damage to a blade during a landing. The image above shows the stricken blade’s shadow, revealing its badly frayed tip. Ingenuity, the first vehicle to perform controlled flight on another world, now sets the stage for more ambitious missions involving aerial vehicles.