Josh Byerly, public affairs officer, NASA, left, Robert Lightfoot, associate administrator, NASA, second from left, Alan Lindenmoyer, program manager, NASA's Commercial Crew and Cargo Program, and, Frank Culbertson, executive vice president, Orbital Sciences Corporation, right, are seen during a press conference held after the successful launch of the Antares rocket, with the Cygnus cargo spacecraft aboard, Wednesday, Sept. 18, 2013, NASA Wallops Flight Facility, Virginia. Cygnus is on its way to rendezvous with the space station. The spacecraft will deliver about 1,300 pounds (589 kilograms) of cargo, including food and clothing, to the Expedition 37 crew. Photo Credit: (NASA/Bill Ingalls)

Expedition 35 NASA Flight Engineer Tom Marshburn is interviewed by NASA Pulic Affairs Officer Josh Byerly for NASA Television at the Karaganda Airport in Kazakhstan on Tuesday, May 14, 2013. Marshburn, Expedition 35 Commander Chris Hadfield of the Canadian Space Agency (CSA) and Russian Flight Engineer Roman Romanenko returned to earth from more than five months onboard the International Space Station where they served as members of the Expedition 34 and 35 crews. Photo Credit: (NASA/Carla Cioffi)

CAPE CANAVERAL, Fla. - Media attending a pre-launch news conference at the Kennedy Space Center, Fla. heard from officials who discussed payloads to be launched aboard a SpaceX Dragon capsule. From the left are: Josh Byerly of NASA Public Affairs at the Johnson Space Center, Julie Robinson, NASA program scientist for the International Space Station, Simon Gilroy, Ph.D., BRIC-17 Lead Investigator from the University of Wisconsin, Marshall Porterfield, division director of the Life and Physical Sciences at NASA Headquarters, Michael Johnson, chief technical officer for NanoRacks, and Michael Roberts, research scientist with the Center for Advancement of Science in Space. Scheduled for launch March 1 atop a Falcon 9 rocket, the SpaceX Dragon capsule will be making its third trip to the space station. The mission is the second of 12 SpaceX flights contracted by NASA to resupply the orbiting laboratory. For more information, visit http:__www.nasa.gov_mission_pages_station_structure_launch_spacex2-feature.html Photo credit: NASA_Kim Shiflett

CAPE CANAVERAL, Fla. - Media attending a pre-launch news conference at the Kennedy Space Center, Fla. heard from officials who discussed payloads to be launched aboard a SpaceX Dragon capsule. From the left are: Josh Byerly of NASA Public Affairs at the Johnson Space Center, Julie Robinson, NASA program scientist for the International Space Station, Simon Gilroy, Ph.D., BRIC-17 Lead Investigator from the University of Wisconsin, Marshall Porterfield, division director of the Life and Physical Sciences at NASA Headquarters, Michael Johnson, chief technical officer for NanoRacks, and Michael Roberts, research scientist with the Center for Advancement of Science in Space. Scheduled for launch March 1 atop a Falcon 9 rocket, the SpaceX Dragon capsule will be making its third trip to the space station. The mission is the second of 12 SpaceX flights contracted by NASA to resupply the orbiting laboratory. For more information, visit http:__www.nasa.gov_mission_pages_station_structure_launch_spacex2-feature.html Photo credit: NASA_Kim Shiflett