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Birds in flocks, bacteria and cells: In many collective systems, individual elements respond to only part of their surroundings, seemingly defying Newton's third law of motion—action equals reaction. These exceptions are ...

In recent years, Hong Kong has experienced repeated episodes of intense rainfall that have significantly affected social operations, including the "once-in-a-century" rainstorm in September 2023, exceptionally heavy rain ...

A Yale-led team of astronomers has found a third galaxy devoid of dark matter—located alongside the other two in a formation that has never been seen before. Astronomers have followed a faint, cosmic trail of gas to a third ...

Could Earth have seeded Jupiter's moon Europa with bacterial life, where it could have taken hold in Europa's ocean and perhaps evolved into something more? That's the hypothesis of a new paper in the International Journal ...

Astronomers have detected one of the most powerful ultra-fast outflows ever seen from a distant supermassive black hole. Using XMM-Newton and NuSTAR, a team studied a hyper-luminous quasar at cosmic noon and found two distinct ...

Many quantum effects can be observed only when a small number of particles is studied—individual atoms, molecules or photons, for example, carefully shielded from the rest of the world. But what about macroscopic objects, ...

Physicists have long been drawn to the nonlinear Hall effect: a subtle variant of the classical Hall effect, in which an electric voltage appears perpendicular to a current flowing through a material. Unlike its classical ...

An international study of infant remains from 50,000–75,000 years ago has provided new evidence about the developmental trajectory of our evolutionary "cousins," Neanderthals.

In a recent editorial published in Science, Microsoft's chief scientific officer, Eric Horvitz, and researcher Robert West from the School of Computer and Communication Sciences at EPFL in Switzerland issue a stark warning ...

The environment in which children grow up can play a central role in their mental development and psychological well-being. For instance, past studies have found that a family's socioeconomic status and the opportunities ...

Goats appear to have a rare ability not shared by many in the animal kingdom, and that is being able to follow the direction of a human voice to locate hidden objects. While dogs have been shown to do this, even our closest ...

It's an insect everybody loves to hate. Pesky mosquitoes will be out in swarms as the weather warms up across the U.S.—and their bites aren't just itchy. They can transmit pathogens that can cause diseases like West Nile ...