Sound like a joke? These guys sound dead serious to me:
http://www.breakthroughinitiatives.org/News/4
The idea is to make tiny laser-sail driven interstellar vehicles. Loft a whole bunch into space, unfold them, then blast them up to speed (0.2c!?) with an array of ground-based lasers. Send them to Alpha Centauri and have them beam back data with an onboard laser.
http://www.breakthroughinitiatives.org/News/4
The idea is to make tiny laser-sail driven interstellar vehicles. Loft a whole bunch into space, unfold them, then blast them up to speed (0.2c!?) with an array of ground-based lasers. Send them to Alpha Centauri and have them beam back data with an onboard laser.