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STS-127 Mission Specialists Chris Cassidy and Tom Marshburn will tackle a challenging 7 Â½-hour spacewalk today to finish swapping out batteries for the International Space Stationâ€™s oldest set of solar arrays.
Word of the Day
- An imitative word; an onomatopoetic word.
The word 'onomatope' is a back-formation from 'onomatopoeia'.