"Spacecraft propulsion is any method used to accelerate spacecraft and artificial satellites."
The technology and science behind the propulsion of rockets and spacecraft into space.
"In-space propulsion exclusively deals with propulsion systems used in the vacuum of space and should not be confused with space launch or atmospheric entry."
"Most satellites have simple reliable chemical thrusters (often monopropellant rockets) or resistojet rockets for orbital station-keeping and some use momentum wheels for attitude control."
"Russian and antecedant Soviet bloc satellites have used electric propulsion for decades."
"Newer Western geo-orbiting spacecraft are starting to use them for north–south station-keeping and orbit raising."
"Interplanetary vehicles mostly use chemical rockets as well, although a few have used ion thrusters and Hall-effect thrusters (two different types of electric propulsion) to great success."
"Hypothetical in-space propulsion technologies describe the propulsion technologies that could meet future space science and exploration needs."
"These propulsion technologies are intended to provide effective exploration of the Solar System and will permit mission designers to plan missions to 'fly anytime, anywhere, and complete a host of science objectives at the destinations' and with greater reliability and safety."
"The question of which technologies are 'best' for future missions is a difficult one; expert opinion now holds that a portfolio of propulsion technologies should be developed to provide optimum solutions for a diverse set of missions and destinations."
"In-space propulsion is an essential component of space exploration, enabling spacecraft and satellites to accelerate and navigate through the vacuum of space."
"Russian and antecedant Soviet bloc satellites have used electric propulsion for decades, while newer Western geo-orbiting spacecraft are starting to use them for north–south station-keeping and orbit raising."
"Most satellites have simple reliable chemical thrusters (often monopropellant rockets) or resistojet rockets for orbital station-keeping."
"Ion thrusters and Hall-effect thrusters (two different types of electric propulsion) have been used to great success for interplanetary vehicles."
"Some satellites use momentum wheels for attitude control."
"The question of which technologies are 'best' for future missions is a difficult one; expert opinion now holds that a portfolio of propulsion technologies should be developed to provide optimum solutions for a diverse set of missions and destinations."
"Russian and antecedant Soviet bloc satellites have used electric propulsion for decades."
"Most satellites have simple reliable chemical thrusters (often monopropellant rockets) or resistojet rockets for orbital station-keeping."
"Ion thrusters and Hall-effect thrusters (two different types of electric propulsion) have been used to great success for interplanetary vehicles."
"These propulsion technologies are intended to provide effective exploration of the Solar System and will permit mission designers to plan missions to 'fly anytime, anywhere, and complete a host of science objectives at the destinations' and with greater reliability and safety."
"Expert opinion now holds that a portfolio of propulsion technologies should be developed to provide optimum solutions for a diverse set of missions and destinations."