
Earendil-1
The first demonstration satellite: a 142 kg spacecraft carrying an aluminized thin-film reflector roughly 18 meters on a side, folded into a container about the size of a microwave oven and deployed on orbit at 600 to 650 km. It is designed to steer a reflected beam onto a spot several kilometers wide for up to five minutes per pass, within about two hours of local sunset. Reflect's homepage still describes 2026 lighting as 0.1 lux (full-moon comparable); a peer-reviewed August 2026 paper calculates about 1.05 lux for an 18-meter prototype.





