碰触贝努小行星
2020年10月22日 Tagging Bennu Image Credit: OSIRIS-REx, University of Arizona, NASA, Goddard Scientific Visualization Studio Explanation: On October 20, after a careful approach to the boulder-strewn surface, the OSIRIS-REx spacecraft’s arm reached out and touched asteroid Bennu. Dubbed a Touch-And-Go (TAG) sampling event, the 30 centimeter wide sampling h...