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Kurzgesagt – In a Nutshell/YouTube

Cute explainer video breaks down red dwarves, humanity’s next hope after the sun

Chances are a red dwarf will be the last star in the universe to burn out.


Michelle Jaworski

Internet Culture

Posted on Feb 1, 2016   Updated on May 27, 2021, 7:07 am CDT

Life as we know it will end one day, but the key to finding alien life—and humanity’s last hope for survival beyond Earth—is already out there.

According to a new video from the educational channel Kurzgesagt, the last star left in the universe will probably be a red dwarf. It has a lifespan of approximately 10 trillion years and burns out more slowly than other stars—such as the sun itself, which only has about 1 billion years left.

Red dwarfs also exert enough energy to support a system of planets (but only if you’re within the right distance of it), giving humanity a possible viable option once Earth can no longer support us for trillions of years. But if a red dwarf makes it possible for us to inhabit another planet, what’s to say one isn’t already doing that for other lifeforms?

Screengrab via Kurzgesagt – In a Nutshell/YouTube

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*First Published: Feb 1, 2016, 10:53 am CST