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California Startup's Space Mirrors Spark Light Pollution Controversy

10/25/2025

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Summary

Story summary

Reflect Orbital, a California startup, plans to deploy 4,000 mirrors in space to reflect sunlight onto Earth and extend daylight for agriculture and cities.
Astronomers and environmentalists have raised concerns that the project could disrupt night sky observations and ecosystems.
The mirrors could shine up to four times brighter than the full moon, increasing light pollution.
Critics say the project threatens the day-night cycle and risks biodiversity and human well-being.

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Story summary

Reflect Orbital, a California startup, plans to deploy 4,000 mirrors in space to reflect sunlight onto Earth and extend daylight for agriculture and cities.
Astronomers and environmentalists have raised concerns that the project could disrupt night sky observations and ecosystems.
The mirrors could shine up to four times brighter than the full moon, increasing light pollution.
Critics say the project threatens the day-night cycle and risks biodiversity and human well-being.