Mercury, Composite image. 水星, 複合圖像

This composite image of observations by NASA and the ESA's Solar and Heliospheric Observatory shows the path of Mercury during its November 2006 transit. On Monday, May 9, 2016, the solar system's smallest, innermost planet will resemble a black dot as it passes in front of the Sun. NASA says the event occurs only about 13 times a century. (Photo by Solar and Heliospheric Observatory/NASA/ESA via AP Photo)
The Day in Photos – May 6, 2016
http://avax.news/fact/The_Day_in_Photos_May_6_2016.html

Mercury (planet) - Wikipedia, the free encyclopedia

水星

Photo Collage, Jigsaw puzzle, Photo Blend, Photo combination, Composite picture, superimposed picture.
照片拼貼, 拼圖, 照片合成, 照片組合, 複合圖片, 疊加圖片
http://okok1111111111.blogspot.tw/2014/05/photo-collage-jigsaw-puzzle-photo-blend.html