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Physics

A very good blast from the past

And into the future: New, cool stuff that lasers can do.

Physics

Explainer: What is a laser?

Lasers are the brightest source of light on Earth and produce the purest form of color possible.

Health & Medicine

Bright dining makes mice gain weight

Study connects nighttime light exposure, body mass.

Fossils

Prehistoric air travel

Flying reptiles might have crossed oceans, continents nonstop.

Tech

Minimachines that move without batteries

Chemistry powers tiny tools that have big potential.

Chemistry

Prizes award big ideas about small things

Carbon and IVF win big in this year’s Nobel prizes.

Tech

When love-hate is materially good

Researchers copy nature's water-loving, water-repelling ways to make smarter stuff

Humans

Volcanic doom for Neandertals

Eruptions may have helped set the stage for modern humans.

Planets

Faraway planet could support life

A planet 20 light-years away could be the perfect distance from its star.

Tech

Crawling, nano-sized robots

Built from DNA, these teeny bots move as directed.

Health & Medicine

Obesity and the common cold

A study of children finds those who caught a particular virus were more likely to be obese.

Brain

Bullying is an everyday problem

New work is showing that the best way to stop bullying is to keep it from ever starting.