LightSail 2 celebrates its 3rd anniversary as it nears the end of the mission

LightSail 2 celebrates its 3rd anniversary as it nears the end of the mission

A solar-navigation mission now marks three years of spaceflight, but is unlikely to celebrate a fourth anniversary.

The Planetary Society’s LightSail 2 is a crowdfunded solar sail that was launched on June 25, 2019. It was expected to last a year in a spacecraft performance evaluation using only the power of the sun.

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