Perseverance rover does the ‘twist’ on Mars to shake loose stuck rocks

A quick twist and shake relieved NASA’s Perseverance rover on Mars of the last two pebbles clogging its sampling system. 

The trouble began during the rover’s sixth Red Planet rock sample, on Dec. 29. Pebbles got stuck along the rover’s bit carousel, which passes rock samples into the spacecraft’s internal handling system for processing. After a few weeks of analysis, the Perseverance rover attempted to get rid of the final pesky pebbles by reversing up onto some nearby rocks. Perched on top of the rocks, the rover did a twist with one foot to shake loose the debris, according to NASA.