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The promise of space colonization fuels illusions that keep us distracted from the fact that we’re killing our planet. Scientists, activists, and Indigenous voices challenge this vision, questioning whether multi-planetary dreams are real progress—or just dangerous myths serving powerful interests.

By the end of the century, humanity will become an interplanetary civilization, with millions living in autonomous colonies on the Moon, Mars, and massive orbiting space stations, while pioneers journey toward distant stars. Once pure science fiction, these ambitions are now promoted by wealthy entrepreneurs, governments, and powerful networks who see space as both humanity’s next frontier and a lucrative solution to Earth’s limited resources. This vision fuels the booming “New Space” industry, driven by dreams of astronomical profits and fears about our planet’s future.
But for a growing number of space professionals, these projects are nothing more than dangerous illusions. Human biology is deeply tied to Earth’s atmosphere, gravity, and magnetic field, while space remains a hostile and deadly environment. Even in the face of climate catastrophe, overpopulation, and resource depletion, Earth is far more hospitable than any other place in the solar system. There is no Planet B, they insist. Instead of chasing fantasies of distant colonization, humanity should focus on making Earth livable again.
Yet in pursuit of these illusions, the New Space industry contributes to its own doomsday narratives by damaging the atmosphere, disrupting astronomy with satellite pollution, and threatening ecosystems and communities near launch sites.
Resistance is growing. Activists, astronomers, and scientists are working to reframe space exploration within a broader cultural, ecological, and scientific context, and to remind us that, ultimately, we are just a tiny speck in the vast universe whose survival depends on caring for the one fragile planet we already call home.