==输入==
===视频===
#https://commons.wikimedia.org/wiki/File:Artist%E2%80%99s_impression_of_a_supermassive_black_hole_at_the_centre_of_a_galaxy.webm
#https://commons.wikimedia.org/wiki/Category:Videos_of_planets
#https://commons.wikimedia.org/wiki/Category:Videos_of_exoplanets
等
===图片===