NASA's billion dollar InSight robot is struggling to dig into the surface of Mars

NASA's InSight rover has provided the American space agency with weather reports, images and other interesting findings on Mars – but has struggled to probe its surface. In nearly eight months, the land rover has only dug through 14 inches of the red planet's surface, even though it was engineered to reach at least 16 feet to study how heat escapes from the interior. This blunder has come down to InSight's'mole' heat probe's inability to keep its footing in the soil – NASA believes the device is just bouncing in place. In nearly eight months, the land rover has only dug through 14 inches of the red planet's surface, even though it was engineered to reach at least 16 feet in order to study how heat escapes from the interior InSight, NASA's $1 billion rover, made landing on Mars in November 2018 after traveling through space for seven months. And although it has been a key player in the Mars mission, it has failed to explore the planet's interior.