保护地球，探索宇宙，发现文明
2024年1月6日 The Snows of Churyumov-Gerasimenko Images Credit: ESA, Rosetta, MPS, OSIRIS; UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA; Animation: Jacint Roger Perez Explanation: You couldn’t really be caught in this blizzard while standing by a cliff on periodic comet 67P/Churyumov-Gerasimenko. Orbiting the comet in June of 2016, the Rosetta spacecraft’s narr...
2023年11月26日 A Dust Jet from the Surface of Comet 67P Image Credit: ESA, Rosetta, MPS, OSIRIS; UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA Explanation: Where do comet tails come from? There are no obvious places on the nuclei of comets from which the jets that create comet tails emanate. In 2016, though, ESA’s Rosetta spacecraft not only imaged a jet emerging fro...