During a thorough review of space shuttle Discovery's readiness
for flight, NASA managers decided Friday more data and possible
testing are required before proceeding to launch. Engineering teams
have been working to identify what caused damage to a flow control
valve on shuttle Endeavour during its November 2008 flight.
NASA is asking the public to help name the International Space
Station's next module -- a control tower for robotics in space and
the world's ultimate observation deck.
Aerojet announced last week the company completed a hot firing
test sequence of a new roll control thruster being developed as a
candidate for NASA's Ares I launch vehicle. This was a significant
milestone, as it is the first firing of the improved engine design
including a new valve that meets redundancy criteria ensuring crew
safety and provides pulsing capability that is critical for the
roll control application.
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