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A reactionless drive is a hypothetical device producing motion without the exhaust of a propellant.A propellantless drive is not necessarily reactionless when it constitutes an open system interacting with external fields; but a reactionless drive is a particular case of a propellantless drive that is a closed system, presumably in contradiction with the law of conservation of momentum.
For example, a 1-tonne spaceship traveling at 1/10 of the speed of light carries a kinetic energy of 4.5 × 10 17 joules, equal to 5 kg according to the mass–energy equivalence. This means that for accelerating to such speed, no matter how this is achieved, the spaceship must have converted at least 5 kg of mass/energy into momentum ...
On 11 November 2023, the BARRY-1 satellite, a 3U cubesat, was launched as part of the SpaceX Transporter 9 Rideshare mission. Produced by Rogue Space Systems, BARRY-1's primary objective is to test the company's hardware and software, with a future goal of offering hosted payload services. Rogue Space Systems announced that the satellite is ...
Atmosphere-breathing electric propulsion, or air-breathing electric propulsion, shortly ABEP, [1] is a propulsion technology for spacecraft, which could allow thrust generation in low orbits without the need of on-board propellant, by using residual gases in the atmosphere as propellant.
Busek's BIT-3 ion thruster operating on several propellants. The propulsion maturation is a partnership between NASA and the U.S. Air Force. iSat's iodine propulsion system consists of a 200 watt Hall thruster (BHT-200-I) developed by Busek Co, a cathode, a tank to store solid iodine, a power processing unit (PPU) and the feed system to supply the iodine.
An antimatter rocket is a proposed class of rockets that use antimatter as their power source. There are several designs that attempt to accomplish this goal. The advantage to this class of rocket is that a large fraction of the rest mass of a matter/antimatter mixture may be converted to energy, allowing antimatter rockets to have a far higher energy density and specific impulse than any ...
An orbital propellant depot is a cache of propellant that is placed in orbit around Earth or another body to allow spacecraft or the transfer stage of the spacecraft to be fueled in space. It is one of the types of space resource depots that have been proposed for enabling infrastructure-based space exploration. [1]
He was employee No.1 of SpaceX and is the founder and now CEO of Impulse Space. [1] Mueller is best known for his engineering work on the Merlin, Draco, Super Draco and TR-106 rocket engines. He is considered one of the world's leading spacecraft propulsion experts and holds several United States patents for propulsion technology. [2] [3]