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One day the last star will die
and the universe will turn dark forever,
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it will probably be a red dwarf;
a tiny kind of star
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that is also one of our best bets
to find alien life,
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and might be the last home of humanity
before the universe becomes uninhabitable.
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So what do we know about them?
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And why are they our last hope?
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At least 70% of the stars in the Universe
are red dwarfs.
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They are the tiniest stars out there,
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with only about 7 to 15 percent of the
mass of our sun.
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Not that much bigger than the
planet Jupiter,
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which is still huge, though.
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They are also very demn.
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It is impossible to see them with
the naked eye.
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You have never seen one in the nightsky.
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Even with all our technology we can only
clearly absorve red dwarfs in our neighbourhood.
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Approximately 20 of the 30 stars closest to
Earth are red dwarfs.
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Like all stars, red dwarfs fuse hydrogen
into helium.
