The plasma magnet sail engine is little greater than 2 pairs of charged rotating coils and is due to this fact very simple and cheap. A totally powered plasma magnet sail utilizing a small nuclear energy supply may speed up at 0.5G and attain 400-700 km/sec (0.2% of lightspeed) in half a day. (H/T Centauri Dreams) * Carrying a 10 Kilowatt energy supply allows very low cost missions to the Gravitational lens with journeys taking 5 years. Multiple gravitational lens missions are wanted since you possibly can solely observe what’s on the precise reverse facet of the solar from the gravitational lens mission * 10kW

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