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We dissect the current science on the suggested amount of dirt and germ exposure for kids.

Support newspapers and avoid hateful bots, all in one move.

Unexploded ordinance is a multigenerational burden—a threat in Ukraine and other nations.

A historic drought calls for new ideas.

From fairy inkcaps to netted stinkhorns, a new survey catalogs more than 200 species of fungi on the French Polynesian island of Mo’orea.

States are playing catch up as they try to decriminalize opioid tests that are accessible to the public.

Find a new use for your now-classic Nintendo console.

What to know about smaller nuclear weapons, and how they fit into what's known as an "escalation ladder."

Inside ‘sensory archaeology’ and the challenge of studying the scents of artifacts.

Our age, city, and social status can shape our sense of direction. Sea Hero Quest gives a window on how.

The Defense Production Act will support the production and processing of minerals and materials needed to build batteries for the transportation and power sectors.

The new power plant is said to be 15 percent more efficient. Here's how it works.

The FDA greenlit second boosters for some populations as early data shows the extra shot might provide additional protection.

Help us find scientists and engineers with game-changing ideas.

What to know about cluster munitions, precision-guided weapons, and US and Soviet arms development during the Cold War.

The Defiant is a candidate to be the next Black Hawk. It recently traveled away from its testing site in Florida to Tennessee.

Escaping helium suggests our world may have formed quickly in a young solar system.

The introduction of the ECASH Act, along with a recent executive order, shows how the US government is thinking about the future of money.

Going live in 3, 2, 1...

Greenhouse gas emissions are only one part of the equation.