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KENNEDY SPACE CENTER, FLA. - At Astrotech Space Operations in Titusville, Fla., a Ball Aerospace technician helps guide the flight battery toward the flyby spacecraft on Deep Impact where it will be installed. 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…
