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.
First US in-flight fatalities. The Space Shuttle Challenger was destroyed 73 seconds after lift-off on STS-51-L. The investigation found that a faulty O-ring seal allowed hot gases from the shuttle solid rocket booster (SRB) to impinge on the external propellant tank and booster strut.