LightSail 2 – Spaceflight Now

December 17, 2025

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LightSail team declares success in solar sail experiment

August 1, 2019 Stephen Clark

The gentle push of sunlight is slowly changing the orbit of the Planetary Society’s crowd-funded LightSail 2 satellite after it unfurled a thin solar sail the size of a boxing ring last week, officials confirmed Wednesday.

Privately-funded spacecraft now solar sailing in Earth orbit

July 26, 2019 Stephen Clark

A nanosatellite launched aboard SpaceX’s Falcon Heavy rocket last month has unfurled a solar sail membrane and is using light pressure from the sun to change its orbit around Earth, pioneering techniques that could be used by future missions traveling to the sun’s stellar neighbors.