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Our Sun burns 1 GT of hydrogen every 2 seconds [1]. This is the mass of the hydrogen in 9 GT of water. The dwarf planet Ceres was discussed just yesterday on HN
by credit_guy 6y ago
Our Sun burns 1 GT of hydrogen every 2 seconds [1]. This is the mass of the hydrogen in 9 GT of water. The dwarf planet Ceres was discussed just yesterday on HN. It contains about 200 million GT of water. If that's not enough, we can go and use Jupiter, which contains about 1 quadrillion GT of hydrogen. Enough to last for a few billion years.
[1] https://en.wikipedia.org/wiki/Nuclear_fusion#/media/File:The_Sun_by_the_Atmospheric_Imaging_Assembly_of_NASA's_Solar_Dynamics_Observatory_-_20100819.jpg https://en.wikipedia.org/wiki/Nuclear_fusion#/media/File:The...
- TeMPOraL 6y agoA star IS a fusion reactor. Already built, already working, already fusing hydrogen. If you want to power an interplanetary civilization, there's zero point in building your own, when you already have a working one, and all you need is to keep adding energy collectors as the demand grows.
- credit_guy 6y ago> there's zero point in building your own That's quite a strong assumption.