How To Use Extragalactic In A Sentence
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If Lorentz invariance were violated, the gamma-rays would pass right through the extragalactic infrared fog with insufficient energy to cause annihilation.
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Extragalactic nebula is invisible to the naked eye.
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Astronomer Art Hoag first asked this question when he chanced upon this unusual extragalactic object.
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extragalactic nebula
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The number of these sources is consistent with the expected number of extragalactic sources in the background sky.
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NGC 2419 may really have an extragalactic origin as, for example, the remains of a small galaxy captured and disrupted by the Milky Way.
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He's a gift to all things galactic and extragalactic.
The Sun
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And on extragalactic scales, they even expect to study individual stars around black holes.
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Hence the whole foundation of extragalactic astronomy and Big Bang theory is swept away’ .
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It is definitely an extragalactic background.
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Astronomers can determine the composition and temperature of extragalactic material by analyzing the way radiation passing through it is distributed along an infrared spectrum.
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But the most notable work of this period was in extragalactic research.
Houston Chronicle
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`extragalactic nebula' is a former name for `galaxy'
