Blinked and missed it

2019-03-06 03:01:12

By Jeff Hecht A SOFTWARE glitch has left the Pentagon wondering what really happened in the missile defence test two weeks ago, in which a missile shot down a dummy warhead (New Scientist, 21 July, p 12). The glitch affected the sophisticated new radar system built on Kjawalein Atoll in the Marshall Islands, the spot where the interceptor missile was launched. The radar identified and tracked the dummy warhead, which was launched from California, and guided the interceptor. However, the radar couldn’t assess what happened after the impact. The radar was primarily designed to guide the interceptor,