Eärendil-1: Sunlight Reflection Satellite

Eärendil-1: Sunlight Reflection Satellite

Context

Recently, the U.S. Federal Communications Commission (FCC) cleared a proposal by the U.S.-based startup Reflect Orbital to test a novel space-based lighting system through its Eärendil-1 satellite, which aims to redirect sunlight to designated locations on Earth after dark.

About Eärendil-1

  1. It is designed to demonstrate the feasibility of redirecting sunlight to selected locations on Earth after sunset using a space-based reflective mirror.
  2. The satellite will operate in a non-geostationary Low Earth Orbit (LEO) at an altitude of 600–650 km.
  3. It carries a motorized, highly reflective thin-film mirror that can be deployed in orbit and precisely oriented to redirect sunlight.
  4. The mission aims to increase the availability of sunlight for solar energy applications beyond natural daylight hours.
  5. The technology could provide temporary illumination for emergency response, humanitarian assistance, and other critical operations.
  6. If successfully demonstrated, it could support clean energy, agriculture, industrial activities, and disaster management.