NASA's Perseverance hits a snag as debris prevents its robotic arm from storing sixth rock sample

NASA's Perseverance rover hit a snag while trying to capture its latest piece of rock from Mars, with a pebble-sized bit of debris stopping it from storing the sample. The SUV-sized vehicle has been on the Red Planet since February 2021, and is slowly trundling through the Jezero Crater taking rock samples for later retrieval. The Perseverance team, tweeting as the rover, wrote: 'I recently captured my sixth rock core and have encountered a new challenge. Seems some pebble-sized debris is obstructing my robotic arm from handing off the tube for sealing/storage.' It retrieved the sample on December 29, or sol 306 on Mars, where it successfully cored and extracted the sample, but the transfer to the tube failed. On January 7, NASA discovered there was a small piece of rock inside the entrance to the tube docking area, blocking it from entering.