Friday, April 29, 2011

Launch delayed

Mechanical trouble has forced NASA to scrub today's launch of space shuttle Endeavour.
It's because two heaters on an auxiliary power unit failed.
Commander Mark Kelly and his crew were on their way to the launch pad when NASA halted the countdown.
The astronauts' van did a U-turn, and returned them to crew quarters so engineers can work on the problem.
NASA says the next try will be Sunday at the earliest.

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