NASA's Johnson Space Center (JSC) director Michael L. Coats (center background) and the STS-131 crew members are pictured at the STS-131 crew return ceremony on April 21, 2010 at Ellington Field near JSC.

21 April 2010 --- NASA's Johnson Space Center (JSC) director Michael L. Coats (center background) and the STS-131 crew members are pictured at the STS-131 crew return ceremony on April 21, 2010 at Ellington Field near JSC. Pictured from the left are NASA astronauts Alan Poindexter, commander; James P. Dutton Jr., pilot; Rick Mastracchio, Dorothy Metcalf-Lindenburger, Stephanie Wilson, Japan Aerospace Exploration Agency (JAXA) astronaut Naoko Yamazaki and NASA astronaut Clayton Anderson, all mission specialists.