By Jeff Gilmour, 12 December 2025 In a recent article in The Economist the author points out that the American GPS system needs an upgrade.1Currently 32 satellites orbit 20,200 km above the […]
By Jeff G. Gilmour, 2 September 2024 It was recently disclosed that Russia appears to be working on a nuclear weapon in orbit that could knock out our satellite systems […]
By Jeff G. Gilmour, 18 April 2024 Most reconnaissance satellites operate in a low-earth orbit (LEO) at 160-2000k above the earth. However last year China launched the Yaogan-41, which can […]
