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Helium is used to pressurize fuel tanks, ensuring fuel flows to the rocket's engines without interruption; and for cooling systems. As fuel and oxidiser are burned in the rocket's engines, helium ...
Fusion rocket. A schematic of a fusion-driven rocket by NASA. A fusion rocket is a theoretical design for a rocket driven by fusion propulsion that could provide efficient and sustained acceleration in space without the need to carry a large fuel supply. The design requires fusion power technology beyond current capabilities, and much larger ...
The proton–proton chain, also commonly referred to as the p–p chain, is one of two known sets of nuclear fusion reactions by which stars convert hydrogen to helium. It dominates in stars with masses less than or equal to that of the Sun, [2] whereas the CNO cycle, the other known reaction, is suggested by theoretical models to dominate in ...
Helium. hexagonal close-packed (hcp) Helium (from Greek: á¼¥λιος, romanized: helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table.
Boeing’s Starliner mission has safely docked with the International Space Station and the spacecraft’s crew, NASA astronauts Butch Wilmore and Suni Williams, have arrived aboard the station ...
The RS-25, also known as the Space Shuttle Main Engine (SSME), [1] is a liquid-fuel cryogenic rocket engine that was used on NASA 's Space Shuttle and is used on the Space Launch System (SLS). Designed and manufactured in the United States by Rocketdyne (later Pratt & Whitney Rocketdyne and Aerojet Rocketdyne), the RS-25 burns cryogenic (very ...
For now, Reeder suggested, helium consumers must be judicious. “It’s probably not good to use helium for party balloons anymore,” he said. On Thursday, the U.S. government sold the Federal ...
The highest specific impulse chemical rockets use liquid propellants (liquid-propellant rockets). They can consist of a single chemical (a monopropellant) or a mix of two chemicals, called bipropellants. Bipropellants can further be divided into two categories; hypergolic propellants, which ignite when the fuel and oxidizer make contact, and ...