BHO, bolden, garver –you have been warned!!
?6/30/2011
Several US astronauts, including the legendary Neil Armstrong, wrote to Nasa administrator Charles Bolden on 30 June warning of an "unacceptable flight risk" because the Soyuz lacks the airlocks, life support systems and robotic arm that allow the shuttle to act as a base for spacewalks to repair the ISS in the event that a systems failure or accident on board the station makes it uninhabitable.
Christopher Kraft, the former head of Nasa's Manned Spaceflight Centre, one of the authors of the letter, warned of a "catastrophic re-entry" of the 400-tonne station into the Earth's atmosphere and showers of debris if there was no capability to fix it in the event of a "terrible failure".
"It is never wise to play Russian roulette in space," he added.
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