Race is on for space-junk alarm system

日期:2019-03-08 05:11:10 作者:胡童 阅读:

By Paul Marks A WORLDWIDE network of radar stations could tackle the ever-growing problem of space debris – the remains of old rockets and satellites that pose an increasing threat to spacecraft. The US government is launching a competition, which will run until the end of 2010, to find the best way of tracking pieces of junk down to the size of a pool ball. Three aerospace companies – Northrop Grumman,