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KENNEDY SPACE CENTER, FLA. - Ball Aerospace technicians prepare the Deep Impact flyby spacecraft for installation of the flight battery at Astrotech Space Operations in Titusville, Fla. About the size of a Ford Explorer, the flyby spacecraft is three-axis stabilized and uses a fixed solar array and a small NiH2 battery for its power system. A NASA Discovery mission, Deep Impact will probe beneath the surface of Comet Tempel 1 on July 4, 2005, when the comet is 83 million miles from Earth. During the encounter phase when the comet collides with the impactor projectile propelled into its path…
