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单词
extragalactic
释义
extra
gal
ac
tic
/ˌɛkstrəɡəˈlaktɪk
/
adjective
Astronomy
Situated, occurring, or originating outside the Milky Way galaxy:
extragalactic radio sources
...
Hence the whole foundation of extragalactic astronomy and Big Bang theory is swept away’.
It is definitely an extragalactic background.
The number of these sources is consistent with the expected number of extragalactic sources in the background sky.
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更新时间:2025/3/25 9:46:24