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主題: Astronomers find 100 brown dwarfs in our neighborhood 作者: peter 於 2020-08-29 08:05:47 https://www.universetoday.com/147581/astronomers-find-100-brown-dwarfs-in-our-neighborhood/
Backyard Worlds: Planet 9 https://www.zooniverse.org/projects/marckuchner/backyard-worlds-planet-9 |