The suspect allegedly shot the victim after a dispute involving the suspect’s girlfriend; an LVMPD officer fired shots when he spotted the suspect running from the store with the gun
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BWC: LVMPD officer shoots gun-wielding man running from Walmart after allegedly shooting another manThe suspect allegedly shot the victim after a dispute involving the suspect’s girlfriend; an LVMPD officer fired shots when he spotted the suspect running from the store with the gun
SpaceX’s Starship super-rocket deployed operational next-generation Starlink satellites for the first time during its 13th flight test, which addressed snags that arose in the previous test.
Black holes represent some of the most extreme environments in the universe. They are the sources of the strongest gravitational fields, allowing us to test Einstein’s theory of general relativity to an extent impossible with small objects. But we are also reaching the limit of what we can learn about one remotely. So, various authors have put forward ideas for how we might eventually send a probe directly to a black hole to observe it up close. One of the most vocal of those authors is Cosimo Bambi of Fudan University in Shanghai—and he recently released a paper, available as a preprint on arXiv, about what it would take to send a gram-sized probe to a nearby black hole.
Searching for extraterrestrial intelligence has so far primarily meant focusing on one particular type of signal—and that signal has normally been based on our own current cutting-edge technology. But what if that’s the wrong way to look for signs of alien intelligence? What if a resource-conscious civilization decided it was too complicated to send femtosecond lasers in high-energy bursts across the universe? A new paper, available as a preprint on arXiv, from researchers Dániel Apai, Chia-Lung Lin and Kevin Wagner suggests that might actually be what happens and that we should start looking for long-duration pulsing interstellar beacons.
One of the challenges of searching for technosignatures (i.e., signs that intelligent life somewhere in the universe has created technology) is understanding what to look for. Technology is a very broad area, and different types would show up as different features. One of the most commonly cited is a Dyson sphere, which attempts to encapsulate a star and capture its outgoing light to produce energy. But while we’ve looked for the mid-infrared waste heat these structures would produce for decades, we haven’t found a definitive instance of one. According to a new paper, available as a preprint on arXiv by Turkish high school student Sahin Torlakcik, that might be because we are looking for the wrong type of energy altogether.
A new study published in Nature Physics reports the first direct experimental evidence of a Floquet topological state, a novel light-induced phase of matter that, until now, has existed only on paper and in simulations. Topological insulators can conduct electricity along their surface while remaining insulating throughout their bulk. Physicists have spent years developing Floquet engineering, a technique that uses intense, rapidly oscillating light fields to temporarily reshape a material’s electronic structure.
A U.S.-Russian space crew landed safely in the steppes of Kazakhstan on Sunday after an eight-month stint on the International Space Station.
Imagine holding one of our most precise quantum devices at a fixed position outside a black hole. A Josephson junction—two superconductors separated by an ultrathin barrier—can turn a voltage into a quantum oscillation with extraordinary precision. Would intense gravity change that quantum rule, or only change how a faraway observer reads the device?
Many molecules exist in two mirror-image forms—like left and right hands—that look identical but can behave very differently, especially in biological systems and pharmaceuticals. Distinguishing between these enantiomers (also called chiral molecules) is a longstanding challenge in science and technology. A useful analogy is that of a screw and a nut: A right-handed screw fits only into a right-handed thread, while a left-handed one will not engage properly.
By analyzing the data from NASA’s Fermi gamma-ray space telescope, Chinese astronomers have investigated a recently identified millisecond pulsar known as PSR J0435+3233. As a result, they found that the pulsar exhibits gamma-ray pulsations. The discovery was detailed in a paper published July 17 on the pre-print server arXiv.
The laws of thermodynamics state that heat naturally flows from hotter systems or regions to colder systems or regions until a state of thermal equilibrium is reached. This simple principle underpins the operation of numerous technologies, ranging from refrigerators to power plants.
Fort Worth Civilian Response Unit Specialist Edward Zapata, who was not armed with a gun, was struck by pellets on his face and eye as he ushered a bystander to safety
The cameras are used at the North Central Texas Council of Governments Regional Police Academy to review trainees’ actions after situational training
SpaceX’s mammoth Starship rocket blasted off Friday on another test flight stretching halfway around the world, this time releasing 20 of the most advanced Starlinks.
The suspect shot a Kalamazoo County deputy in the leg, stole his cruiser and led law enforcement on a pursuit across three counties
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