What are the decomposers in the underwater ecosystem? A: The decomposers in an underwater ecosystem are animal-like organisms called protists, fungi and bacteria. Referred to as saprotrophs, these organisms decom... Full Answer >
On 1 February 2003 the space shuttle Columbia exploded as it was attempting re-entry after a 16-day mission. All seven astronauts on board, including the first Israeli in space, were killed. Tributes to the astronauts were led by US President George W Bush.
Remember teacher Christa McAuliffe, the first American civilian selected to go to space, who died in the Challenger space shuttle explosion, on Biography.com. High school teacher Christa McAuliffe was the first American civilian selected to go into space. She died in the explosion of the space shuttle 'Challenger' in 1986.