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Military

Technology

Self-healing plastic oozes fluids to mimic blood clots

An artificial vascular system embedded in plastic can fill holes up to 8 millimetres wide and may one day help spacecraft and fighter jets mend themselves

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Technology

Drones tag and track quarry using nanoparticle sprays

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Life

Drone school: Tough lessons for rookie remote pilots

Features

Technology

The US air force’s holiday wish list: 2500 PlayStations

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Space

Astronomers clash with US air force over laser rules

News