The Pentagon wants to launch satellite constellations to track missiles

The Pentagon wants to develop and deploy constellations of satellites that would bolster missile defense systems and other military applications in low Earth orbit. The Pentagon’s Space Development Agency (SDA), created in March to oversee space-related projects pursued across the US military, is proposing the establishment of a “National Defense Space Architecture,” according to Bloomberg News. The system, which would consist of as many as 1,200 satellites, would create several layers of satellite constellations. More

(Source: MIT Technology Review - Oct 8)