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GPS getting an upgrade - for $8 billion

(PhysOrg.com) -- GPS is getting an upgrade costing $8 billion (US), which aims to increase the system's accuracy, improve its reliability, and make the technology even more widespread.

US hypersonic glider flunks first test flight

US military scientists lost contact with a hypersonic glider nine minutes into its inaugural test flight last week, a defense research agency said on Tuesday.

Amazon signs on launch partners for space internet

Amazon on Tuesday announced deals for scores of launches to deploy a "constellation" of satellites in low orbit around the Earth to provide internet service to people below.

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