Last month, the Federal Communications Commission approved an experimental and controversial new satellite being developed by venture Reflect Orbital to reflect sunlight down onto the Earth to illuminate patches of it at night for paying customers.
The purported goal is to allow solar farms to continue generating electricity even after nightfall and provide illumination during emergencies. Those may sound like noble ideas on the surface, but the concept comes with major downsides as well.
One is that such bright satellites could easily wreck deep space observations. Astronomers were appalled at the news, with the FCC receiving nearly nearly 2,000 public comments criticizing the proposal, as Wired reported at the time.
And it’s not just professional astronomers that could be affected, as experts told The Verge. Amateur astronomers gazing up at the prototype mirror satellite, dubbed Eärendil-1 — continuing Silicon Valley’s obsession with borrowing names from JRR Tolkien’s “Lord of the Rings” — could easily be blinded. Even looking through a 12-inch telescope, a common type used by enthusiasts, could result in permanent eye damage.

