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Galaxy astronomy fixed star galaxy astronomer galaxy
03-24
Galaxy astronomer National Astronomical Observatories, Chinese Academy of Sciences fixed star Guo Shoujing telescope galaxy
Chinese star asteroid astronomy Purple Mountain Observatory Zhao Haibin astronomer
03-22
planet centaur fixed star astronomer galaxy earth
03-21
planet fixed star earth Extrasolar planets astronomer
03-14
light-year planet astronomer fixed star soul
03-11
supernova astronomer Tycho Brahe fixed star white dwarf David Blanche
03-10
universe fixed star Early Universe astronomer
03-05
Planet Nine Konstantin Battikin planet Michael Brown solar system astronomer
03-03
fixed star galaxy Galaxy collisions Hubble Telescope astronomer
02-25
planet The origin of life Protoplanetary disk Karin Auberge astronomer fixed star
02-23
solar system astronomer fixed star planet earth
02-21
m77 astronomer black hole galaxy telescope
02-20
asteroid satellite astronomer Electra solar system
Monkey king Andromeda Galaxy Spreading wings galaxy astronomer earth
asteroid satellite astronomer
02-19
universe Cosmic microwave background Laws of physics astronomer
02-18
universe planet earth Shanghai Astronomical Observatory, Chinese Academy of Sciences astronomer
02-17
Super Earth red dwarf earth fixed star planet astronomer
02-14
International Astronomical Union earth Moon astronomer