U.S. Sen. Ted Cruz, R-Texas, left, and, U.S. Sen. Bill Nelson, D-Fla., talk, via a live downlink, to NASA Astronaut Tom Marshburn onboard the International Space Station (ISS) during a NASA briefing ... more 
U.S. Sen. Ted Cruz, R-Texas, left, and, U.S. Sen. Bill Nelson, D-Fla., talk, via a live downlink, to NASA Astronaut Tom Marshburn onboard the International Space Station (ISS) during a NASA briefing with the U.S. Senate Committee on Commerce, S less 
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SPACE.com | Photo By NASA/Bill Ingalls
Wed, May 8, 2013 10:12 AM EDT