Dwayne Brown, NASA public affairs officer, opens a panel discussion at the "Solar System and Beyond: NASA's Search for Water and Habitable Planets" event on Tuesday, April 7, 2015 at NASA Headquarters in Washington, DC. Participants in the panel included John Grunsfeld, associate administrator for the Science Mission Directorate at NASA Headquarters, Ellen Stofan, NASA chief scientist, James Green, director of Planetary Science at NASA Headquarters, Jeffrey Newmark, interim director of Heliophysics at NASA Headquarters, and Paul Hertz, director of Astrophysics at NASA Headquarters.

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Keywords: brown, dc, dwayne, headquarters, joel, kowsky, launch, nasa, rocket, solar, space, system, usa, washington