English: This image shows a Brilliant Pebble anti-ballistic missile interceptor emerging from its protective "life jacket", the white shell. It shows an earlier model of the interceptor design with three fuel tanks, later designs had four much larger tanks wrapped around the missile body. A second Pebble remains inside its life jacket in the background. Several Soviet missiles are shown in the lower right, but these would be too close for the Pebbles to intercept.