Example image of eyePlorer eyePlorer map for 'Weightlessness': Free fall Earth Orbit Vomit Comet Field (physics) Atmospheric reentry Drag (physics) Lift (force) Orbital maneuver Parachute Reaction (physics) Rocket Spacecraft Thrust Trajectory Black hole Force Gravitation Physical compression Tension (physics) Tissue (biology) Column Cross section (geometry) General relativity James Oberg Inertial frame of reference Equivalence principle Micro-g environment Low Earth orbit Parts-per notation Tidal force Centrifugal force Space Shuttle Solar wind STS-107 Space Shuttle Columbia Parabolic NASA Lyndon B. Johnson Space Center McDonnell Douglas C-9 Microgravity University Airbus A300 European Space Agency Bordeaux - Mérignac Airport France Houston Caravelle Ilyushin Il-76 Russia Ecuadorian Air Force