瑞士阿尔卑斯山上空的NEOWISE彗星
2020年7月15日 Comet NEOWISE over the Swiss Alps Image Credit & Copyright: Philipp Salzgeber, foto-webcam.eu; Text: Adam Block Explanation: Comet NEOWISE has been wowing photographers around much of the world during dawn and dusk, at the margins of day and night. For the most northern residents of planet Earth, however, the comet circles the North Star and ...