Researchers have proposed a new propulsion method that could ... so to get a given amount of energy from a beam, you either need very high power or you need to stay in the beam a long time." ...

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 ...