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Science & Society

Here’s why putting a missile defense system in space could be a bad idea

Expanding missile defense capabilities could put the world on a slippery slope to space warfare.

Materials Science

A new plastic film glows to flag food contaminated with dangerous microbes

Plastic patches that glow when they touch some types of bacteria could be built into food packaging to reduce the spread of foodborne illness.

Archaeology

Dogs lived and died with humans 10,000 years ago in the Americas

Dogs unearthed at sites in Illinois were older than originally thought.

Space

Lasers squeezed iron to mimic the conditions of exoplanet cores

In the first experiment to measure what exoplanets might be like on the inside, scientists hit iron with 176 lasers at once.