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FREEDOM

retired
Technology DemonstrationLEOCOSPAR 1998-067KSLaunched 12/9/2016
Admin Edit
Mission & Launch
Launch Mission
HTV-6
Launch Vehicle
H-IIB
Launch Date
12/9/2016
Last Contact
2/5/2017
Orbit & Mass
Orbit Class
LEO
Altitude
400 km
Inclination
51.64 deg
Dry Mass
1 kg
Total Mass
1 kg
Payload Classification
Mission Type
Technology Demonstration
Payload Category
TECH
Payload Class
A
Organizations
Operator
Tohoku University
Manufacturer
Nakashimada Engineering Works Ltd.
Registry
COSPAR ID
1998-067KS
UN Registration
ST/SG/SER.E/862
Track
Mentions
173
All verified mentions of this spacecraft in source documents.
0.0-5.0
Actions

NASA’s Space Reactor-1 (SR-1) Freedom mission is targeting a launch in late 2028.

PlanValue 4.0Jul 23, 2026NASA Puts $2B Price Tag on Nuclear Mars Mission

NASA says SR-1 Freedom will be the first fission-powered interplanetary spacecraft.

Capability
Page1of9
Plan
Value 3.8
Jul 23, 2026
NASA Puts $2B Price Tag on Nuclear Mars Mission

SR-1 Freedom will carry SkyFall, NASA’s next Mars helicopter mission, to scout landing sites for future crewed exploration on Mars.

PlanCapabilityValue 4.0Jul 23, 2026NASA Puts $2B Price Tag on Nuclear Mars Mission

York Space Systems' satellites rely on a global network of Atlas Space Operations ground stations and York's Freedom Ground Software for early orbit checkout and ongoing mission support.

RelationshipsCapabilityValue 4.0Jul 22, 2026Layered Military Satcom Network Expands With Second Tranche 1 Transport Deployment

Commander Barry Wilmore took manual control of Starliner after automated systems lost six degrees of freedom of spacecraft control.

CapabilityGeneralValue 4.0Jun 30, 2026NASA Inspector General Questions $127.9 Million in Payments as Boeing Starliner Certification Slips to 2027

Carleton’s rover Eileen included a four-wheel rigid suspension system, swerve drives, 3D-printed polyurethane wheels, a polyurethane arm with six degrees of freedom, and a hammer drill for soil extraction.

CapabilityValue 4.0Jun 18, 2026University of Toronto leads Canadian entries at 2026 Mars Rover Competition

SR-1 Freedom will use multiple Hall-effect electric thrusters.

CapabilityValue 4.0Jun 8, 2026La propulsión eléctrica nuclear, la tecnología que podría acercar Marte a la Tierra

NASA expects SR-1 Freedom to establish technological, industrial, and regulatory precedents for future nuclear systems for propulsion and power generation on the Moon, Mars, and elsewhere in the Solar System.

CapabilityPlanLegalGeneralValue 3.5Jun 8, 2026La propulsión eléctrica nuclear, la tecnología que podría acercar Marte a la Tierra

SR-1 Freedom will use a closed Brayton-cycle fission reactor capable of generating more than 20 kilowatts of electrical power.

CapabilityValue 4.6Jun 8, 2026La propulsión eléctrica nuclear, la tecnología que podría acercar Marte a la Tierra

SR-1 Freedom will carry a science payload that includes exploration helicopters inspired by Ingenuity.

CapabilityValue 3.8Jun 8, 2026La propulsión eléctrica nuclear, la tecnología que podría acercar Marte a la Tierra

The SR-1 Freedom mission was announced by NASA in 2026.

PlanValue 2.8Jun 8, 2026La propulsión eléctrica nuclear, la tecnología que podría acercar Marte a la Tierra

SR-1 Freedom is intended to demonstrate the viability of nuclear electric propulsion on an interplanetary spacecraft.

CapabilityGeneralValue 3.3Jun 8, 2026La propulsión eléctrica nuclear, la tecnología que podría acercar Marte a la Tierra

The SR-1 Freedom fuel would be protected by shielding designed to reduce radiation exposure to electronics and future crews.

CapabilityValue 3.6Jun 8, 2026La propulsión eléctrica nuclear, la tecnología que podría acercar Marte a la Tierra

SR-1 Freedom is planned to launch in 2028 and then head toward Mars.

PlanGeneralValue 4.0Jun 8, 2026La propulsión eléctrica nuclear, la tecnología que podría acercar Marte a la Tierra

The SpaceX Crew Dragon "Freedom" capsule remained powered and ready to undock as an emergency evacuation lifeboat.

CapabilityGeneralValue 3.5Jun 6, 2026Emergency Alert on the ISS: NASA Orders Safe Haven Amid Russian Module Leak Repairs

Five crew members sheltered inside the SpaceX Crew Dragon "Freedom" capsule during the emergency directive.

GeneralValue 3.6Jun 6, 2026Emergency Alert on the ISS: NASA Orders Safe Haven Amid Russian Module Leak Repairs

The NOAA contract also includes Gogo’s FlightDeck Freedom cockpit datalink software suite.

RelationshipsValue 4.3Jun 4, 2026Gogo secures $7.5 million NOAA contract for ‘hurricane hunter’ aircraft communications

NASA will give narrative partners access to its major programs, including Artemis, the Draco nuclear propulsion project, and the SR-1 Freedom reactor mission.

GeneralValue 2.0Jun 3, 2026La NASA abre sus puertas a poetas y cineastas para que narren sus proezas

NASA’s SR-1 Freedom space reactor is scheduled to travel to Mars in 2028 with the Skyfall payload.

PlanCapabilityGeneralValue 4.5Jun 3, 2026La NASA abre sus puertas a poetas y cineastas para que narren sus proezas

NASA plans to send the SR-1 Freedom space reactor toward Mars in 2028 with the Skyfall payload.

PlanCapabilityGeneralValue 4.5Jun 3, 2026La NASA abre sus puertas a poetas y cineastas para que narren sus proezas