NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
Space shuttle Discovery launch, 4th July, 2006. Successful launch of the shuttle at 2:38 pm EDT from pad 39b. On the 12-day STS-121 mission, the crew will test new equipment and procedures to improve shuttle safety, as well as deliver supplies and make repairs to the International Space Station. This mission is the 115th shuttle flight and the 18th US flight to the station. Photographed at Kennedy Space Center, Florida.
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