cislunar
Between Earth, moon
Cislunar describes the region of space between Earth and the Moon, or within the Moon's orbit.
The term appears in discussions of space exploration and satellite operations: cislunar space, cislunar trajectory.
NASA and other agencies use it when planning missions that operate in this zone rather than venturing into deeper space.
Path of moving object
- perigeeOrbit's closest point
- apogeeHighest orbital point
- delta-vSpacecraft maneuver measurement
- transferMove between locations
insertion · maneuver · velocity · gravity-assist · escape · burn · corridor · midcourse
Purpose-driven task
- spacecraftVehicle for outer space
- capsuleEnclosed dose container
- astronautsCrew of spacecraft
- habitatOrganism's natural environment
gateway · rendezvous · docking · pioneering · frontier · colonization · outpost · expedition
Impact-formed depressions
- regolithFragmented covering over bedrock
- mareFemale adult equine
- tranquilityUndisturbed peacefulness
- highlandsElevated, hilly land areas
seas · phases · eclipse · farside · nearside · surface · landing · moonbase
Instrument magnifying faraway objects
- observatoryFacility for celestial study
- celestialOf the sky above
- trackingMonitoring location over time
- communicationExchanging ideas or information
radio · observation · satellite · proximity · gravitational
trajectory
Path of moving object
transfer · insertion · maneuver · velocity · gravity-assist · escape · burn · corridor · midcourse · navigation
mission
Purpose-driven task
- spacecraftVehicle for outer space
- capsuleEnclosed dose container
- astronautsCrew of spacecraft
habitat · gateway · rendezvous · docking · pioneering · frontier · colonization · outpost · expedition · crew
craters
Impact-formed depressions
- regolithFragmented covering over bedrock
- mareFemale adult equine
- tranquilityUndisturbed peacefulness
highlands · seas · phases · eclipse · farside · nearside · surface · landing · moonbase
telescope
Instrument magnifying faraway objects
- observatoryFacility for celestial study
- celestialOf the sky above
- trackingMonitoring location over time
communication · radio · observation · satellite · proximity · gravitational
cislunardeep space
Remote regions beyond planets
interplanetary · interstellar · translunar · heliocentric · extrasolar
lunar, lunacy, lunatic, luna, lunula, lunette, cis, lunate, sublunar