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KENNEDY SPACE CENTER, FLA. - Radar technicians adjust two bird detection radars near Launch Pad 39B before the July 1 launch of Space Shuttle Discovery on mission STS-121. When birds, especially vultures, are near the shuttle during a launch, impact on a critical area is possible and could cause catastrophic damage to the vehicle. Already proven affective for aviation where threats posed by bird strikes have been a problem, the avian radar, known as Aircraft Birdstrike Avoidance Radar, provides horizontal and vertical scanning and can monitor either launch pad for movement of vultures around them. If data relayed from the avian radar indicates large birds are dangerously close to the vehicle, controllers could hold the countdown. Photo credit: NASA/Dimitri Gerondidakis