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Three decades after Challenger disaster, Christa McAuliffe's lessons will be taught Teacher and space shuttle astronaut, Sharon Christa McAuliffe, is shown in an undated official portrait released by NASA. McAuliffe and the entire Space Shuttle Challenger crew were lost seventy three seconds after launch when a booster rocket failed ...
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Ecologist rates Thai coral reef decay rate as alarming Reef diving off Phuket's Shark Point near the King Cruiser wreck. Most Thai coral is endangered from activities including human destruction, plastic pollution and bleaching.
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