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MIT Technology Review·

🚀Reflect Orbital Plans to Beam Sunlight From Space Later This Year

Astronomers and environmentalists are skeptical about the plan

TL;DR

Reflect Orbital aims to launch a satellite that can beam sunlight to Earth, but astronomers and environmental groups raise concerns over its impact. The test satellite, Eärendil-1, is set for launch later this year.

Reflect Orbital plans to launch a satellite called Eärendil-1 later this year to beam sunlight from space on demand. This ambitious project aims to extend daylight hours and could have significant implications for aviation, wildlife, and astronomy. The Federal Communications Commission approved the launch in July, but concerns remain about potential risks and environmental impacts. If successful, up to 50,000 satellites might be launched, altering night skies dramatically. Astronomers warn that a single satellite would appear 40 times brighter than the full moon within its beam's target area.

Reflect Orbital Plans to Beam Sunlight From Space Later This Year — MIT Technology Review

Key Points

1

Eärendil-1 will be launched later in 2023 by Reflect Orbital as a test satellite for their ambitious plan to beam sunlight from space.

2

The Federal Communications Commission approved the launch of Eärendil-1 in July, paving the way for further testing and development.

3

A single Reflect Orbital satellite would appear 40 times brighter than the full moon within its target area, significantly altering night skies.

4

Combining beams from 400 satellites could create a light as bright as 10,000 full moons in targeted areas, affecting millions of people.

5

Reflect Orbital aims to place satellites into highly inclined orbits for optimal sunlight reflection before and after sunset.

Why It Matters

Astronomers and environmental groups are raising alarms over Reflect Orbital's plan. The night sky would be dramatically altered within the beam's target area, with a single satellite appearing 40 times brighter than the full moon. This could disrupt observations and impact wildlife patterns. Reflect Orbital needs to secure additional permissions from national and local regulators before proceeding.

Reflect OrbitalEärendil-1Space-Based Solar PowerNight Sky ImpactEnvironmental Concerns

Frequently Asked Questions

Why does this matter?

Astronomers and environmental groups are raising alarms over Reflect Orbital's plan. The night sky would be dramatically altered within the beam's target area, with a single satellite appearing 40 times brighter than the full moon. This could disrupt observations and impact wildlife patterns. Reflect Orbital needs to secure additional permissions from national and local regulators before proceeding.

What happened?

Reflect Orbital aims to launch a satellite that can beam sunlight to Earth, but astronomers and environmental groups raise concerns over its impact. The test satellite, Eärendil-1, is set for launch later this year.

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