Space shuttle Atlantis is expected to reach the international space station on Sunday, delivering cargo and a research module. Astronauts onboard are also carrying replacement parts and batteries for the station. The mission is the final one for the storied spacecraft, which first blasted off in 1985. Atlantis carried the Magellan spacecraft, which was responsible for mapping 98 percent of Venus. It also transported Galileo, which did important work gathering information in Jupiter.
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