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Explorer 1 was the first satellite launched by the United States.
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Neil Armstrong became the first man to set foot on the moon in this shuttle
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This was the development of a two-man spacecraft.
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This was Earth's first space probe to an outer planet
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The heaviest of NASA's orbiters, Columbia weighed too much and lacked the necessary equipment to assist with assembly of the International Space Station. Despite its limitations, the orbiter's legacy is one of groundbreaking scientific research and notable "firsts" in space flight.
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Challenger's service to America's space program ended in tragedy on Jan. 28, 1986. Just 73 seconds into mission STS 51-L, a booster failure caused an explosion that resulted in the loss of seven astronauts, as well as the vehicle.
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Discovery has the distinction of being chosen as the Return to Flight orbiter twice.
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Atlantis was delivered to Kennedy Space Center in April 1985.
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The primary mission objectives are to retrieve, service and then re-deploy HST
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Used to explore polar regions of Sun
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Mars Pathfinder was designed to be a demonstration of the technology necessary to deliver a lander and a free-ranging robotic rover to the surface of Mars
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This studies everything, and has a few people in it at all times.
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CALIPSO is a joint NASA (USA) and CNES (France) environmental satellite, built in the Cannes Mandelieu Space Center
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Endeavour is the fifth and final spaceworthy NASA space shuttle to be built, constructed as a replacement for Challenger
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There were spare parts delivered to the ISS to fix it
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Discovery missions differ from traditional NASA mission where targets and objectives are pre-specified, instead, these missions are proposed by any organization while costs are capped.
