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Can giant space mirrors boost green energy on Earth? A start-up aims to find out

Nature Other Kaia Glickman 2026-07-17

TL;DR - A start-up plans to launch an array of 50,000 mirror-bearing satellites to reflect sunlight and boost solar/green energy generation on Earth, but astronomers warn the constellation could severely disrupt ground-based telescope observations. This is a space-energy venture story, not AI research.

  • A company aims to test whether giant orbital space mirrors can enhance renewable (solar) energy production on the ground.
  • The proposed scale is large: an array of ~50,000 mirror-bearing satellites.
  • Astronomers are deeply concerned the reflective satellites will compromise telescope observations (light pollution/interference).
  • Content is thin (title plus a brief abstract) and contains no AI/ML subject matter; despite the "journal" source hint, it reads as an industry/venture news item, hence Industry & News and topic Other.

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