Paul Crawford and Teams at NASA’s Marshall Space Flight Center help monitor launch conditions for the Demo-2 mission from the Huntsville Operations Support Center, HOSC.

Paul Crawford andTeams at NASA’s Marshall Space Flight Center help monitor launch conditions for the Demo-2 mission from the Huntsville Operations Support Center, HOSC.

Paul Crawford and teams at NASA’s Marshall Space Flight Center help monitor launch conditions for the Demo-2 mission from the Huntsville Operations Support Center, HOSC.

Ken Schrock, Paul Crawford, Adam Butt, and teams at NASA’s Marshall Space Flight Center help monitor launch conditions for the Demo-2 mission from the Huntsville Operations Support Center, HOSC.

Janet Anderson, Paul Crawford, and teams at NASA’s Marshall Space Flight Center help monitor launch conditions for the Demo-2 mission from the Huntsville Operations Support Center, HOSC.

James Crawford, principal investigator and scientist based at NASA’s Langley Research Center in Hampton, Va., talks about the DISCOVER-AQ project on board the P-3B NASA research aircraft at Baltimore/Washington International Thurgood Marshall Airport, Tuesday, June 28, 2011, in Baltimore, Md. The aircraft is part of a month-long field campaign designed to improve satellite measurements of air pollution. The name of the experiment -- Deriving Information on Surface conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER -- AQ) -- is a mouthful, but its purpose is simple. Come July, the aircraft will be flying spirals over six ground stations in Maryland. Photo Credit: (NASA/Paul E. Alers)