| 词汇 | extragalactic |
| 释义 | extragalactic adjective uk /ˌek.strə.ɡəˈlæk.tɪk/ us /ˌek.strə.ɡəˈlæk.tɪk/ relating to or coming from a place outside our galaxy(= one of the independent groups of stars in the universe): Extragalactic astronomy is advancing incredibly quickly, but there is still so much we haven't seen. Different sources of extragalactic radiation have been discovered. It's difficult to know exactly when extragalactic exploration might be possible, but it's probably sooner than we think. Hubble was the first astronomer to detect the existence of extragalactic stars. The performers resembled extragalactic creatures. Astronomy albedo Andromeda Aquarius Aries asteroid galaxy Gemini geostationary geosynchronous gibbous observatory orbit orbital Orion penumbra substellar sunspot supergiant supermassive supermoon Comparegalactic |
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