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No, there was testing earlier than that. In particular, a Japanese test in Venus transfer orbit starting in 2010: https://en.wikipedia.org/wiki/Solar_sail http
by greglindahl 10y ago
No, there was testing earlier than that. In particular, a Japanese test in Venus transfer orbit starting in 2010:
https://en.wikipedia.org/wiki/Solar_sail https://en.wikipedia.org/wiki/Solar_sail
The one 2 years ago was the Planetary Society's Lightsail, which had a big crowdfunding campaign. The next iteration of Lightsail is launching on the 2nd Falcon Heavy flight.