But video of what appeared to be some kind of debris falling off Discovery during launch prompted questions that NASA officials said they couldn't immediately answer.
The NASA video showed the unidentified debris falling and not appearing to hit Discovery. Falling debris that struck the craft during liftoff was blamed for the eventual destruction of Columbia as it re-entered the atmosphere in February 2003.
Since then, NASA has taken steps to minimize the amount and size of debris falling off the shuttle's exterior tank during its ascent. But the space agency has said it's impossible to eliminate falling launch debris. NASA experts said they will analyze liftoff video frame by frame in the coming days.
Rod said:Hopefully they will land in California. When they do, we feel/hear it coming.
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