article_snippet.sent: Plasma rockets feature exhaust velocities far above those achievable by Plasma rockets chemical cousins, so Plasma rockets fuel consumption is extremely low.
article_snippet.sent: Plasma rockets like Vasimrillustrated) feature exhaust velocities far above those achievable by their chemical cousins, so their fuel consumption is extremely low .
article_snippet.sent: By comparison, current electric propulsion used by Nasa such as the ion engine on the Dawn spacecraft - operates at less than five kilowatts.