LCD 'Engine' For Spacecraft Attitude Control

Bruce Perens writes "Japan's IKAROS satellite, which earlier performed the first successful demonstration of a solar sail, has broken more new ground. Liquid-crystal displays — yes, like in your video monitor — were fabricated into strips on the edges of the solar sail. By energizing some of the LCDs and changing the reflective characteristics of parts of the sail from specular to diffuse, JAXA scientists successfully generated attitude control torque in the sail, changing the spacecraft's orientation."

Comments

Re:Useful for stationkeeping?

[Bruce Perens]

It seems you don't get solar wind in a magnetosphere, so the two systems each work best where the other won't.