phobos, lunar excursion module, spacecraft, astronauts, orbiter, lander, spaceship, spacesuit, skylab, retroreflector, space shuttle, neil armstrong, capsule, retrorockets, rover, copilot, airlock, soyuz, cockpit, nosewheel, drogue chute, drogue parachute, nosecone, orbit, ballistic trajectory, spaceward, heat shield, alan shepard, spacemen, mooring mast, gradiometer, sextants, thruster, unpowered, extravehicular, gimbal, spacewalk, bathyscaphe, geosynchronous orbit, solid rocket, bathysphere, rock outcrop, hypergolic, taikonaut, zero gravity, space capsule, inertial guidance, conning tower, shuttle, nose cone, frustum, minisub, inertial navigation system, bathyscaph, microgravity, bombsight, launch vehicle, lifeboat, geostationary orbit, salyut, gimbals, yuri gagarin, ascender, ornithopter, space station, huygens, hatchway, theodolite, hypervelocity, handrail, airfoils, airship, sidewheel, triplane, toru, cosmonauts, blastoff, cartesian coordinates, vernier, perilune, parabolic mirror, pilothouse, cosmodrome, companionway, geosynchronous, liftoff, weightlessness, moonwalker, booster rocket, monoplane, bleriot, rocket propulsion, flatboat, echo sounder, landing gear, cassini, capstan, telescope, flight engineer, gyroplane, circumlunar, plane

ballistic capsule, spacecraft, space vehicle

lem, lunar excursion module