or perhaps confine the electrons more to the core of the beam. Ultimately, this could help missions powered by electric propulsion to fly farther and for longer, pushed by the gentle blue breeze ...

By focusing this energy into a relativistic electron beam, the statite could propel a spacecraft over distances of 100 to 1,000 AU. This represents a significant leap over existing propulsion ...

Sunbeam’s calculations show it could propel probes up to 1,000 AU from Earth, far outlasting traditional laser propulsion methods. A 1,000 kg probe powered ... such a beam requires up to 19 ...