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A study finds road traffic kills have an exaggerated impact on the viability of small groups.

Physicists have uncovered a surprising limit to electrical resistance caused by particles colliding. Using ultracold potassium atoms trapped in a grid of light, researchers created a highly controlled stand-in for electrons moving through a solid. As collisions became more frequent and intense, resi...

Summary pending review.

Summary pending review.

The gusty wind didn’t make it easy to hold tight to a balloon so large. The balloon, a scientific instrument called an ozonesonde, was about to be released into the atmosphere above the Texas Gulf Coast by students from NASA’s SARP (Student Airborne Research Program), which concluded its summer sess...

Video obtained by the BBC provides a firsthand look at the powerful storm system that ripped through parts of eastern Wisconsin on 27 July.

More than 150 years after Darwin’s finches helped reshape biology, Galápagos plants are exposing another evolutionary surprise. Giant daisies repeatedly developed similar heat-tolerant leaf shapes, but each lineage used a different combination of genes. Researchers also found major genetic differenc...

A fossil overlooked for nearly 80 years has revealed a previously unknown crocodile relative that lived 210 million years ago in what is now New Mexico. Named Eosphorosuchus lacrimosa, the jackal-sized predator had a reinforced skull, powerful jaw muscles, and a short snout built for tackling larger...

Ultrafast X-rays revealed how a molecule converts absorbed light into motion in just trillionths of a second. Individual atoms recorded different stages of the process, opening a powerful new window into light-driven chemistry.