Science & Futurism with Isaac Arthur cover image

Refueling Our Sun: Holding Back Eternity

Science & Futurism with Isaac Arthur

00:00

Using Deuterium Fusion Reactors in the Solar System

The Sun produced enough sunlight to light up 2 billion Earths or 20 million of these Saturn shells so hypothetically you could have 500 trillion years worth of fuel stored in them. A big star pump for a movie helium is a great way to grab deuterium too and while there is still room to doubt if we ever get commercial fusion reactors working you should be able to at least make a planet sized deuterium fusion reactor work. We might never colonize beyond this solar system though it is hard to imagine we could engage in star lifting but not star travel.

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