In memory of brave explorers
In this image from television on Jan 29, 2003, shuttle mission specialists Kalpana Chawla stores supplies aboard the shuttle Columbia. The six Americans and one Israeli aboard Columbia marked their 13th day in space Wednesday. Their round-the-clock laboratory research mission, featuring more than 80 experiments, is due to end with a landing back at Kennedy Space Center on Saturday, Feb.1, 2003. NASA lost communication with space shuttle Columbia as the ship soared over Texas several minutes before landing Saturday morning Feb. 1. It wasn't immediately clear if there was a problem with the shuttle. (AP Photo/NASA TV)
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The past week has marked the anniversaries of three NASA tragedies: Apollo 1, Space Shuttle …
