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Engineering

Numerous bits of orbiting debris threaten spacecraft, so two teams propose tracking them with unique license plate-like transponders.

Ramin Skibba, Contributor

A new approach to prosthetic design allows for quick and easy fitting while keeping the costs low.

Marcus Woo, Contributor

On an April weekend, engineers, designers and astronauts-in-training met to test suits for commercial, suborbital spaceflight.

Charles Q. Choi, Contributor

Massive geoengineering projects to hold back glaciers in Greenland and Antarctica could slow sea level rise.

Brian Owens, Contributor

The innovation could one day help marine biologists eavesdrop on whales and equip submarines with more sensitive sonar.

Catherine Meyers, Editor

Plastic tracks could reduce the cost of Olympic “sliding” events and make the sports more environmentally friendly and accessible.

Peter Gwynne, Contributor

Some of the so-called “hygrobots” can spontaneously advance across a wet surface.

Catherine Meyers, Editor

An inexpensive handheld sensor may simplify testing for pesticides on fruits and vegetables – but won’t replace government monitoring.

Valerie Brown, Contributor

AI is helping to identify safer techniques in construction work.

Marcus Woo, Contributor

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