U.S. Sen. Bill Nelson (D-Fla.) said Dec. 14 he is ready to join Sen. Kay Bai-ley Hutchison (R-Texas) to introduce legislation that would require NASA to fly an additional space shuttle mission in order to keep a $1.5 billion space station science payload from being left on die ground.NASA dropped the Alpha Magnetic Spectrometer (AMS) from the launch manifest after the 2003 Space Shuttle Co-• lumbia accident.
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