双星中质量较大、通常也较亮的子星。
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欧盟海军说,船主星期四报告有14名船员失踪。
The European Union Naval Force says the 14-member crew was reported missing by the boat's owner Thursday.
研究者猜测它的宿主星系很有可能隐藏在星尘之中,但无迹可寻。
Researchers thought the galaxy must be hidden behind some dust. But they didn't find one.
Ia型超新星如此之亮,以至于在几个星期内它的寄主星系的光芒也相形见绌。
Type Ia supernovae are so luminous that they outshine their host galaxies for several weeks.
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