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As NASA’s Curiosity rover recently began climbing a Martian valley nicknamed “Valle Grande,” it sent back images that were a familiar sight to mission scientists: honeycomb-like textures called polygonal fractures, each about 1.5–3 inches (4–8 centimeters) across. The mission has spotted small patches of these geometric shapes several times before, but nothing at the scale discovered in Valle Grande.
Scientists have discovered a previously unknown law of geometry that explains why some growing surfaces, whether in nature or in engineered materials, suddenly stop being able to stay smooth and instead form dimples and folds. Until now, researchers believed they understood the geometric rules behind these shape changes, but this study reveals a new kind of “geometric frustration” that arises even when all the known rules are satisfied.
Security camera video shows Tucson Police officers shooting a man eight seconds after he stopped firing shots
The Tampa Police Department found that Dukagjin Maxhuni did not give a man enough time to comply with his instruction to “turn around” before deploying a TASER
For most theories in physics, the order of operations has little impact on the result. When setting a dial to a certain position, for example, it doesn’t matter whether it’s turned clockwise or counterclockwise—the result will always be the same. Yet for non-Abelian gauge theories, order does matter. These theories underpin the Standard Model, but to test their more subtle predictions, researchers have so far relied on enormous particle accelerators.
In November 2025, NASA’s Mars-bound ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers) spacecraft launched from Cape Canaveral with special cargo on board: two camera systems designed and built by faculty and students at NAU, with support from the University of California, Berkeley, and Rocket Lab.
A team of researchers has discovered that winds generated by supermassive black holes are 100 times more powerful than previously thought, carrying energy across distances of approximately 300,000 light-years. The discovery demonstrates that these explosive winds affect the vast expanse of space beyond the galaxies they inhabit.
Electronic motion sets the stage for virtually every light-induced process in nature, from the first step of a chemical reaction to the flow of charge in a solid. Yet these processes unfold so rapidly that they can be observed only with flashes of light lasting a few hundred attoseconds—billionths of a billionth of a second.
The investigation found that DCMPD’s crime reporting controls “broke down significantly” from 2015 through 2025
Astronomers have built the first three-dimensional map of gas temperature in the space surrounding our solar system, revealing a far messier and more dynamic picture than current models predict. The study was submitted to the arXiv preprint server on July 16.
Quantum technologies are devices and systems that exploit the laws of quantum mechanics and could perform tasks that are difficult or impossible to tackle using their classical counterparts. These technologies process and store information using qubits (i.e., quantum bits), which can exist in a superposition of multiple states simultaneously.
The infrared-sensitive James Webb Space Telescope (JWST) has conducted multiple surveys of the very distant universe, digging into what was happening in the first billion years after the Big Bang. As part of these deep surveys, its sensors have been picking up mysterious objects dubbed “Little Red Dots.” It has found more than 300 of them since their discovery in 2024. These intriguing little objects look like their name: distant, small objects that appear red in JWST observations.
The United States on Tuesday said it plans to exempt its private space sector from numerous environmental regulations to accelerate the pace of space launches and ramp up competition with China.
The spacecraft rushing to the rescue of an aging and sinking NASA telescope has run into its own problem.
A shape that captured worldwide attention for solving a decades-old mathematical puzzle has returned to the spotlight. While the shape’s properties allowed it to solve previous puzzles, little is known about its other associated properties, creating opportunities for further discovery. These unexplored properties may also help solve new physics mysteries, such as how to twist light into striking chiral patterns.
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