The U.S. has spent half again as much (nearly $3 billion) on radar as on atomic bombs. As a military threat, either in combination with atomic explosives or as a countermeasure, radar is probably as ...

CAPE CANAVERAL, Fla. (AP) — NASA and India paired up to launch an Earth-mapping satellite on Wednesday capable of tracking even the slightest shifts in land and ice. The $1.3 billion mission will help ...