How far away is the star that is closest to Earth? How big is it? Is it part of the the Alpha Centauri System? Learn more about it here.
from Space.com ift.tt/2bcbNIj
How far away is the star that is closest to Earth? How big is it? Is it part of the the Alpha Centauri System? Learn more about it here.
from Space.com ift.tt/2bcbNIj
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