Practical/ aerospace propulsionnuclear powerrocket enginessolar powerspace vehicle power plants/ nuclear transport-power modulessolar transport-power modulesspacecraftnuclear power systemssolar power systemsthermal rocket motThe results of a comparative analysis of the effectiveness of transport-power modules of...
Recent developments in miniaturization, in-space propulsion, onboard processing and control, and communication systems have completely transformed the space sector by allowing smallsats to carry out complex tasks that were previously achievable only with larger spacecraft....
Orbit-to-orbit spacecraft never land on any planet, moon, or asteroid. Therefore they are free to use efficient propulsion systems with a thrust-to-weight ratio below 1.0, such as ion drives or VASIMR. They require no landing gear or parachutes. If there ain't no landing gear, it is ...
Spaceflight, flight beyond Earth’s atmosphere. This article deals with the basic concepts associated with the launch and return of unmanned and manned spacecraft and their travel, navigation, and rendezvous and docking in space. For the development of s
In this process the spacecraft uses a short burn of its onboard propulsion system to place the spacecraft into a highly eccentric elliptical orbit with a perigee that dips just below the outer fringes of the planet’s atmosphere. During each pass through that fringe the atmosphere’s drag ...
Rocket Scientist:Rocket scientists design and develop the propulsion systems used in rockets and spacecraft. They work on improving efficiency and safety in launching and navigating through space. Space Law and Policy Expert:With the increasing commercialization of space, there is a growing need for ...
field of deep space navigationDrawing on fundamental principles and practices developed during decades of deep space exploration at the California Institute of Technology's Jet Propulsion Laboratory (JPL), this book documents the formation of program Regres of JPL's Orbit Determination Program (ODP)....
Mars-orbiting spacecraft have detected water vapor in the Martian atmosphere, particularly in white clouds and fog. Temperature measurements made by the Viking Orbiter missions in the 1970s revealed that the north pole residual cap, which remains year-round, even at the height of Martian summer,...
VOYAGER 2 SPACECRAFTDATA TRANSMISSIONSPACECRAFT COMMUNICATIONSTATISTICAL ANALYSISVoyager radio navigation made use of a differenced rage data type for both Saturn encounters because of the low declination singularity of Doppler data. Nearly simultaneous two-way range from two-station baselines was explicitly...
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