太阳动力学天文台的水星凌日音乐视频
2019 October 21 A Mercury Transit Music Video from SDO Video Credit: NASA’s Goddard Space Flight Center, Genna Duberstein; Music: Encompass by Mark Petrie Explanation: What’s that small black dot moving across the Sun? Mercury. Possibly the clearest view of Mercury crossing in front of the Sun in 2016 May was from Earth orbit. The Solar Dynamics ...