Spacecraft propulsion

proposed type of space transportation system

space-navigation technique

electric propulsion method for spacecraft

speed that is faster than Mach 5

type of spacecraft propulsion that takes advantage of solar radiation

orbit around the barycenter of the Sun

elliptical orbit used to transfer between two circular orbits of different altitudes, in the same plane

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how efficiently a reaction mass engine creates thrust, which is often proportional to effective exhaust gas velocity

thumb|285px|Test firing at the United States Naval Surface Warfare Center Dahlgren Division in January 2008. The fireball is a result of pieces of the projectile shearing off during launch and igniting mid-air.

method used to accelerate spacecraft

thumb|300px|right|An artist's conception of aerobraking with the Mars Reconnaissance Orbiter 300px|thumb |right |An example of Aerobraking Aerobraking is a spaceflight maneuver that reduces the high point of an elliptical orbit (apoapsis) by flying the vehicle through the atmosphere at the low point of the orbit (periapsis). The resulting drag slows the spacecraft. Aerobraking is used when a spacecraft requires a low orbit after arriving at a body with an atmosphere, as it requires less fuel than using propulsion to slow down. A more extreme maneuver is aerocapture, where a spacecraft uses an

space launch vehicle designed to be partially or fully reused

'Delta-v''''' (also known as "change in velocity"), symbolized as {\Delta v} and pronounced , as used in spacecraft flight dynamics, is a measure of the impulse per unit of spacecraft mass that is needed to perform a maneuver such as launching from or landing on a planet or moon, or an in-space orbital maneuver. It is a scalar that has the units of speed. As used in this context, it is not the same as the physical change in velocity of said spacecraft.

The EmDrive is a controversial device first proposed in 2001, purported by its inventors to be a reactionless drive. While no mechanism for operation was proposed, this would violate the law of conservation of momentum and other laws of physics. The concept has at times been referred to as a resonant cavity thruster. The idea is generally considered by physicists to be pseudoscience.

spacecraft system that uses thrusters to provide attitude control

propulsive maneuver used to arrive at the Moon

spacecraft propulsion system which uses electricity

temporary orbit used during the launch of a satellite or other space probe

Trinitramide is a compound of nitrogen and oxygen with the molecular formula . The compound was detected and described in 2010 by researchers at the Royal Institute of Technology (KTH) in Sweden. It is made of a nitrogen atom bonded to three nitro groups ().

proposed spacelaunch method

maneuver that moves a spacecraft from one orbit to another

electric propulsion method for spacecraft

The HM7B was a European cryogenic upper stage rocket engine used on the vehicles in the Ariane rocket family. It was replaced by Vinci, which acts as the new upper stage engine on Ariane 6. Nearly 300 engines have been produced to date.

type of vibration in a rocket engine

method of rocket engine operation

type of flywheel used for three axis attitude control in spacecraft

The AJ10 is a hypergolic rocket engine manufactured by Aerojet Rocketdyne (previously Aerojet). It has been used to propel the upper stages of several launch vehicles, including the Delta II, Titan III and Orion MPCV. Variants were and are used as the service propulsion engine for the Apollo command and service module, in the Space Shuttle Orbital Maneuvering System, and on the European Service Module – part of NASA's Orion spacecraft.

long cables which move satellites in space

concept of an enormous artificial ring placed around the Earth that rotates at an angular rate that is faster than the rotation of the Earth

spacecraft vehicle designed to move the payload from a reference orbit to the target orbit, or direct it to an interplanetary trajectory

proposed system for launching objects into orbit

method of rocket engine operation

proposed momentum exchange tether

thumb|500px|Schematic showing the various phases of the aerocapture maneuver. Atmospheric height is greatly exaggerated for clarity.

proposed spacecraft propulsion method that takes advantage of solar wind

method of rocket engine operation

proposed form of spacecraft propulsion using the dynamic pressure of the solar wind as a source of thrust

spacecraft launching method

entry into a stable orbit around an astronomical object

type of spacecraft plasma propulsion system

low thrust, high specific-inpulse propulsion method for spacecrafts and satilites.

Aestus is a hypergolic liquid rocket engine used on an upper stage of Ariane 5 family rockets for the orbital insertion. It features unique design of 132 coaxial injection elements causing swirl mixing of the MMH propellants with nitrogen tetroxide oxidizer. The pressure-fed engine allows for multiple re-ignitions.

Indian concept for a crewed single-stage reusable spaceplane

airflow induced by electrostatic forces

rocket propellant

A magnetorquer or magnetic torquer (also known as a torque rod) is a satellite system for attitude control, detumbling, and stabilization built from electromagnetic coils. The magnetorquer creates a magnetic dipole that interfaces with an ambient magnetic field, usually Earth's, so that the counter-forces produced provide useful torque.

high-efficiency engine for space travel

device used to reduce the spin of satellites, typically soon after launch

rocket engine using an electric pump for pressurization

rocket engine used by the Apollo Lunar Module

long conducting wires which can act as electrical motors or generators

type of rocket propulsion system

method of rocket engine operation

NASA vertical landing and takeoff test vehicle

type of low-energy spacecraft transfer

NASA conceptual interstellar ship

type of prototype spacecraft plasma propulsion system