Slideshow: 2013 NASA Astronaut Candidate Christina Hammock Koch

Slideshow: 2013 NASA Astronaut Candidate Christina Hammock Koch

More info... http://www.nasa.gov/home/hqnews/2013/jun/HQ_13-177_2013_Astronaut_Class.html http://www.nasa.gov/astronauts/2013astroclass.html