A LOOK AT CHINA’S WAR IN SPACE:

Every industrialized country relies on satellites every day, for everything from computer networking technology to telecommunications, navigation, weather prediction, television and radio. This makes satellites especially vulnerable targets. Imagine the U.S. military suddenly without guidance for its soldiers and weapons systems, and its civilians without storm warnings or telephones.

Some satellites, however, are at greater risk than others. Most spacecraft — including spy sats — are in low Earth orbit, which stretches 1240 miles into space. As the Chinese test proved, such targets could be hit with medium-range missiles tipped with crude kill devices. GPS satellites are far higher, orbiting at about 12,600 miles. Many communications sats are in the 22,000-mile range. Destroying them requires a much more powerful and sophisticated long-range ballistic missile — yet it can be done. “You’d need a sky-sweeping capability to comprehensively negate a space support system that is scattered all over,” says John Pike, a space analyst at GlobalSecurity.org. “You’d need ICBM-size boosters — hundreds of them.”

Such an all-out satellite war would render space useless for decades to come. “There’d be so much debris up there,” Clark says, “that it wouldn’t be safe to put anything up in space.”

I’d be very upset if that happened.