Editing Interstellar travel (section)

===== Fission-electric =====
Nuclear-electric or plasma engines, operating for long periods at low thrust and powered by fission reactors, have the potential to reach speeds much greater than chemically powered vehicles or nuclear-thermal rockets. Such vehicles probably have the potential to power solar system exploration with reasonable trip times within the current century. Because of their low-thrust propulsion, they would be limited to off-planet, deep-space operation. [[Electrically powered spacecraft propulsion]] powered by a portable power-source, say a [[nuclear reactor]], producing only small accelerations, would take centuries to reach for example 15% of the [[velocity of light]], thus unsuitable for interstellar flight during a single human lifetime.<ref>{{citation|url=http://daedalus-zvezdolet.narod.ru/doceng/07eng.doc |title=Project Daedalus: The Propulsion System Part 1; Theoretical considerations and calculations. 2. REVIEW OF ADVANCED PROPULSION SYSTEMS |url-status=dead |archive-url=https://web.archive.org/web/20130628001133/http://daedalus-zvezdolet.narod.ru/doceng/07eng.doc |archive-date=2013-06-28 }}</ref>