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Autonomous mine-hunting vessels replace crewed ships in naval fleets

Navies are increasingly deploying unmanned, shore-monitored systems to detect sea mines instead of traditional mine-hunting vessels that carry around 80 sailors. These autonomous systems can be operated by roughly 20 personnel working in shifts on land, building on technology first tested by the US Navy's Remus 100 underwater robot during the 2003 Iraq war.

Orbital Matter 3D prints rigid beam aboard satellite in orbit

German startup Orbital Matter says its Replicator-2 satellite used an onboard 3D printer to extrude and UV-cure a half-meter rigid plastic beam while in orbit, a process the company likens to mixing cement and water. The satellite, launched on a SpaceX rideshare this summer, carried four such printers, though one of two units meant to deploy a flexible solar array failed due to an anomaly.