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Sr 1 Freedom

All articles tagged with #sr 1 freedom

science-tech16 days ago•12 min saved

NASA bets on nuclear propulsion to slash Mars journeys

NASA is accelerating nuclear propulsion efforts to shrink the Mars trip from more than six months to roughly three to four months, using nuclear thermal propulsion for high thrust and nuclear electric propulsion (ion thrusters) for fuel-efficient, long-duration power. The uncrewed SR-1 Freedom mission is planned for 2028 to test nuclear-powered deep-space travel and deploy Skyfall drones, aiming to prove the technology for future crewed missions. While offering shorter radiation exposure and more launch-window flexibility, the program faces safety, regulatory, and integration challenges before human flights.

via The Conversation|

#electric-propulsion #mars #nasa

technology19 days ago•11 min saved

Tiny Thrust, Endless Reach: Nuclear-Electric Propulsion Could Redefine Deep-Space Cargo

Ion engines push only millinewtons of thrust but offer very high exhaust velocity; when powered by a space‑rated nuclear reactor as in SR-1 Freedom, they can provide continuous thrust for years, enabling reusable cargo tugs and dramatically higher payloads to Mars and beyond. This shifts the deep-space economics from lifting propellant mass to generating reliable electrical power, reshaping mission design, supply chains, and the industries around reactor technology. If proven, outer-planet science and Mars logistics could become orders of magnitude cheaper; if not, chemical propulsion remains the fallback.

via Space Daily|

#deep-space-logistics #hall-thrusters #ion-propulsion

space2 months ago•80 min saved

NASA targets nuclear-electric propulsion with SR-1 Freedom, rebooting Voyager-era power talk

NASA is pursuing Space Reactor-1 Freedom, a 20-kilowatt fission reactor to power a nuclear-electric propulsion system for an interplanetary mission planned for 2028; the NEP approach would use reactor-generated electricity to run an ion engine, a shift from RTGs that have powered Voyager for decades. The project sits in NASA's long history of space nuclear power (SNAP, SNAP-10A, DRACO) with safety and regulatory hurdles still in play; Voyager probes remain RTG-powered and active.

via Space|

#interplanetary-spacecraft #nasa #nuclear-propulsion

space2 months ago•9 min saved

NASA repurposes Gateway core for a nuclear-powered Mars mission

NASA plans to pause Lunar Gateway work and repurpose its Power and Propulsion Element into SR-1 Freedom, a nuclear-electric propulsion demonstration using a uranium-fueled fission reactor and electric thrusters to reach Mars by the 2028 launch window. The mission will also deploy three Ingenuity-like helicopters (Skyfall) on Mars to scout landing sites, with the mothership’s fate to be decided after arrival. The plan faces significant technical, safety, and certification hurdles, and no cost figure has been disclosed.

via Ars Technica|

#gateway #nasa #nuclear-propulsion

science2 months ago•37 min saved

NASA gears up for 2028 Mars mission with nuclear-powered Skyfall helicopters

NASA announced the Skyfall mission to Mars for a December 2028 launch aboard Space Reactor-1 Freedom, a nuclear-powered interplanetary spacecraft. The plan calls for three small helicopters to scout landing sites and map subsurface ice using cameras and ground-penetrating radar, helping pave the way for future human exploration while establishing flight heritage for nuclear propulsion and laying groundwork for regulatory and launch precedents.

via Yahoo|

#mars #nasa #nuclear-electric-propulsion