http://ocw.mit.edu/OcwWeb/Physics/index.htm & Aeronautics and Astronautics Engineering http://web.mit.edu/aeroastro/www/ http://ocw.mit.edu/OcwWeb/Aeronautics-and-Astronautics/index.htm Space exploration is the use of astronomy and space technology to explore outer space . [1] Physical exploration of space is conducted both by human spaceflights and by robotic spacecraft . While the observation of objects in space—known as astronomy —pre-dates reliable recorded