WASHINGTON - MAY 7:  Acting-NASA Administrator Chris Scolese (L) and Comptroller David Schurr prepare for the agency's fiscal year 2010 budget briefing at NASA headquarters May 7, 2009, in Washington, DC. The budget released today foresees the completion of the International Space Station and the retirement of the shuttle fleet in 2010. Getty Images logo Getty Images 6 months ago

WASHINGTON - MAY 7: Acting-NASA Administrator Chris Scolese (L) and Comptroller David Schurr prepare for the agency's fiscal year 2010 budget briefing at NASA headquarters May 7, 2009, in Washington, DC. The budget released today foresees the completion of the International Space Station and the retirement of the shuttle fleet in 2010.