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Microbes

This material uses energy from ambient light to kill hospital superbugs

A quantum dot–powered material could help reduce the number of hospital-acquired infections, including those with drug-resistant bacteria.

Health & Medicine

World’s hottest pepper may have triggered this man’s severe headaches

A man ate one of the hottest peppers in the world. About a minute later, his head began pounding.

Tech

A new soft bot mimics octopuses and inchworms to climb walls

A new soft robot that scales walls could help with surveillance or building inspections.

Anthropology

Finger fossil puts people in Arabia at least 86,000 years ago

A desert discovery suggests that Arabia was an ancient human destination.