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.
September 2011, Vol 42, No. 8. Print version: page 60. Millions of Americans have vivid remembrances of decades-old traumatic events, including John F. Kennedy's assassination, the Challenger space shuttle explosion and, more recently, the 9/11 attacks.