Defense Advanced Research Projects AgencyTagged Content List

Space Systems

Unmanned space systems, including vehicles, robotics and supporting technologies, as well as technologies for space situational awareness

Showing 2 results for Space + Decentralization RSS
06/29/2016
More than 500,000 pieces of manmade space debris—including spent rocket stages, defunct satellites, and fragments as small as flecks of paint—currently hurtle around the Earth at roughly 17,000 miles per hour. At those speeds, impacts involving even the smallest of those items can damage satellites and spawn chain reactions of collisions, increasing the amount of orbital flotsam and creating “minefields” in space that can remain unpassable for centuries.
More than 7,000 spacecraft have been launched from Earth, the vast majority of which are satellites that are no longer operational. These defunct objects, now free-orbiting debris, threaten the more than 1,200 satellites that are currently operated by commercial and government entities around the globe. The number of space debris that threaten important communications, weather monitoring, navigation services and imagery satellites is growing.