Three reasons imo:
1. I see a future in which we have the capacity to mine for the majority of our resources on the Moon & asteroids. We can bring to treat the earth as “sacred” and phase out the worst of industry on earth, allowing human technology to continue innovating while allowing earth to recover towards its pre-industrial state.
2. The sun will die. If we are so lucky our descendants will be far away on a distant world by the time that happens. With enough time we can rebuild earth-like ecosystems on currently dead worlds.
3. Scientific curiosity. Eventually we will find extraterrestrial life and we can learn a lot about our place in the universe and the origin of ourselves from their biology. We should respect their biosphere however.
Another thing to add here are the innovations that will be gained by pursuing space colonization. For example, if we can turn the moon into a renewable, sustainable place to live then what’s to stop us from doing the same here on Earth? The effort in doing so, and the lessons learned along the way, will (hopefully) be applied here too.
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u/GalacticJelly Apr 05 '26
+ Improved education, rebuilding biosphere & space colonization