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Nuclear thermal rocket
Videos
A nuclear thermal rocket is a type of thermal rocket where the heat from a nuclear reaction replaces the chemical energy of the propellants in a chemical rocket. In an NTR, a working fluid, usually li
1 December 1967: The first ground experimental nuclear rocket engine (XE) assembly is shown here in "cold flow" configuration, as it makes a late even
1 December 1967: The first ground experimental nuclear rocket engine (XE) assembly is shown here in "cold flow" configuration, as it makes a late evening arrival at Engine Test Stand No. 1 in Jackass Flats, Nevada. The engine is in the left background with a shield structure in the mid/foreground.
A NERVA solid-core design
A NERVA solid-core design
Pulsed nuclear thermal rocket unit cell concept for Isp amplification. In this cell, hydrogen-propellant is heated by the continuous intense neutron p
Pulsed nuclear thermal rocket unit cell concept for Isp amplification. In this cell, hydrogen-propellant is heated by the continuous intense neutron pulses in the propellant channels. At the same time, the unwanted energy from the fission fragments is removed by a solitary cooling channel with lithium or other liquid metal.
The KIWI A prime nuclear thermal rocket engine
The KIWI A prime nuclear thermal rocket engine
Spacecraft propulsion
Videos
Spacecraft propulsion is any method used to accelerate spacecraft and artificial satellites. In-space propulsion is used in the vacuum of space after launch vehicle has lifted the spacecraft into oute
Nuclear thermal rocket
…velocity and is expected to double or triple payload capacity compared to chemical propellants that store energy internally. NTRs have been proposed as a spacecraft propulsion technology, with the earliest ground tests conducted in 1955. The United States maintained an NTR development program through 1973, when it was shut…
A remote camera captures a close-up view of an RS-25 during a test firing at the John C. Stennis Space Center in Hancock County, Mississippi.
A remote camera captures a close-up view of an RS-25 during a test firing at the John C. Stennis Space Center in Hancock County, Mississippi.
SpaceX's Kestrel engine is tested.
SpaceX's Kestrel engine is tested.
NASA's 2.3 kW NSTAR ion thruster for the Deep Space 1 spacecraft during a hot fire test at the Jet Propulsion Laboratory
NASA's 2.3 kW NSTAR ion thruster for the Deep Space 1 spacecraft during a hot fire test at the Jet Propulsion Laboratory
6 kW Hall thruster in operation at the NASA Jet Propulsion Laboratory
6 kW Hall thruster in operation at the NASA Jet Propulsion Laboratory