Since a star's light takes so long to reach us, how do we know

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Answered: . what type of unconformities are…

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Answered: Consider an isothermal atmosphere at…

Since a star's light takes so long to reach us, how do we know that the star is still there?​

SOLVED: Some scientists do not consider brown dwarfs to be true stars because they do not have enough mass to ignite the nuclear fusion of ordinary hydrogen. At the same time, some

Seeing in the Dark . Astronomy Topics . Light as a Cosmic Time

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Answered: Suppose that three geological study…