An international team of physicists has achieved a significant advance in laser science, demonstrating for the first time a practical route to dramatically boosting the intensity of high-power laser light.
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An international team of physicists has achieved a significant advance in laser science, demonstrating for the first time a practical route to dramatically boosting the intensity of high-power laser light.
A tiny discrepancy in particle physics has loomed for decades as an exciting possible crack in one of science’s most successful theories, hinting at unknown forces or quantum objects. Now, an international team led by a Penn State physicist has published the most precise study yet to reveal the discrepancy was a fluke in calculation, not nature.
Plasma, the fourth state of matter, consists of a gas in which electrons are no longer bound to atoms, which allows electricity to flow freely. When beams of particles moving close to the speed of light travel through plasma, they disturb electrons and drive so-called plasma waves.
The Randolph Police Department released dash camera footage from the 2025 incident, stating that 17 people have now been charged
The six-month program at Arizona State University’s PD evaluates whether EVs can match gas-powered units in performance, durability and response readiness
The man crashed into the station shortly after he was involved in a domestic call, Philadelphia Police Department Commissioner Kevin Bethel stated
The court stated that the hatchet-wielding man was at least 25 feet away when a Chesterfield County officer fired, ruling that the suspect did not pose an immediate threat
A step-by-step review of body camera video examines the moments leading to Officer Krystal Rivera’s death, highlighting lessons on pursuit tactics, doorway entries and officer-down response
A man inside a home shot at officers immediately as they arrived to perform a welfare check in Wister; LeFlore County Deputy Thomas “Walker” LeMay was killed in the shootout
The cases reportedly targeted other involved drivers’ minimal insurance limits, according to the Georgia Department of Public Safety’s Office of Professional Standards
The man was struck in the eye as the LAPD was working to disperse crowds celebrating the L.A. Dodgers 2020 World Series win
Video shows then-officer Carlos Baker firing the shot that killed Officer Krystal Rivera as the two pursued a suspect into an apartment
The Kansas Board of EMS dismissed a case brought against Bryan Shastid, who helped officers perform CPR on K-9 Bane after the dog was strangled by a suspect
Mercury is a small, rocky planet about which researchers know relatively little. Two missions, taking readings as they passed over the planet, have revealed that Mercury is covered by an iron-poor and sulfur-rich crust. It is also reduced, a chemical state in which the substances have gained electrons. In fact, it’s the most reduced planet in the solar system.
Luminous fast blue optical transients (LFBOTs) are among the universe’s brightest and fastest explosions but their origin is not completely understood. A new study takes a closer look at the galaxies they occur in, offering two important clues about their nature. A paper outlining these results was uploaded to the preprint server arXiv on March 24.
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