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Ad Astra is a 2019 American science fiction film produced, co-written, and directed by James Gray.Starring Brad Pitt (who also produced), Tommy Lee Jones, Ruth Negga, Liv Tyler, and Donald Sutherland, it follows an astronaut who ventures into space in search of his lost father, whose obsessive quest to discover intelligent alien life at all costs threatens the Solar System and all life on Earth.
In July 2021, Ad Astra announced the completion of a record-breaking test for the engine, running it for 28 hours at a power level of 82.5 kW. [29] A second test, conducted from July 12 to 16, successfully ran the engine for 88 hours at a power level of 80 kW. [30] Ad Astra anticipates conducting 100 kW power level tests in 2023. [31]
For rockets and space vehicles, propellants usually take up 2/3 or more of their total mass. Large upper-stage rocket engines generally use a cryogenic fuel like liquid hydrogen and liquid oxygen (LOX) as an oxidizer because of the large specific impulse possible, but must carefully consider a problem called "boil off," or the evaporation of the cryogenic propellant.
Ventions, the predecessor to Astra, had developed an air-launched orbital launch system for the SALVO program. Development of an electric-pump-fed rocket engine, later known as Delphin, took place as part of SALVO in 2012. [5] In 2016, Ventions was re-incorporated as Astra, under the ownership of Chris Kemp. The reorganized company proceeded to ...
Astra Mark 3 with solid fuel ducted ramjet propulsion was put to test flight in 2023, enabling the missile to intercept airborne threats over a very long distance at supersonic speed. The missile was configured with nozzle-less booster, thrust modulation system and a sustainer motor to deliver specific impulse in ramjet mode.
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Installed one of two high-pressure nitrogen tanks, and one of two high-pressure oxygen tanks onto Quest, and installed grapple fixture and trunnion covers. [32] [34] [35] 24. STS-104 EVA 3: Michael L. Gernhardt James F. Reilly: 21 July 2001 04:35 21 July 2001 08:37 4 hours, 02 minutes First EVA conducted from the Quest airlock.