Russia Tests Plasma Engine Aimed at Months-Long Mars Trips

Russian researchers at Rosatom’s Troitsk Institute are testing a 300 kW plasma propulsion system that accelerates hydrogen with an onboard nuclear reactor, potentially cutting Mars travel time to about one to two months; current ground tests report exhaust speeds up to 100 km/s, roughly 6 N thrust, and a 2,400-hour service life, but the system has not yet flown or undergone peer review, and deployment depends on further testing, funding, and regulatory approvals toward a 2030 timeframe.