Space science
America built a space fence to detect space junk, small satellites
Later this year, the US Air Force plans to have an electronically controlled phase array radar system located at Kwajalein atoll in the Pacific Ocean.
Space War
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Articles about Space War
2 published items.
Science story
The space war of GPS satellites
While on the ground, you don't know that you can be tracked by countless orbiting devices, including a global positioning system - GPS.