View Full Version : Huge Solar Sail Portion Unfurls In Crucial Ground Test

2013-Oct-02, 01:40 PM
We’re sure the people in that picture above must have had sweaty hands as they unfurled a huge solar sail in front of the camera. What you’re seeing there is a crucial ground test in which a quarter of Sunjammer — the largest solar sail ever expected to fly — was unfurled under Earth gravity […]

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