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Japanese scientists are celebrating the successful deployment of their solar sail, Ikaros.

2010-06-11

 Ikaros solar sail propulsion space travel interstellar
It is the picture that confirms Japan's Ikaros solar sail is fully extended and ready for the next part of its mission. ... The project team will be particularly concerned to keep the sail fully extended and flat. Rather than employ rigid booms or ribs to do this, Ikaros simply spins, making one or two revolutions per minute.

2010-06-16

 sail solar light photon space travel Ikaros