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Since 2022, astronomers have been puzzling over a new kind of cosmic object called long-period radio transients. These are objects that emit bright flashes of radio waves into space every few minutes to every few hours. Some have been traced back to binary systems consisting of a small, dim, cool star called a red dwarf in orbit with a stellar remnant called a white dwarf.
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NASA’s Voyager 1 is about to become humanity’s first object to reach one light-day from Earth as it pushes ever deeper into interstellar space.
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Thanks to the gravitational lensing caused by a massive galaxy cluster and high-resolution images from the James Webb Space Telescope (JWST), astronomers discovered an exploding star when the universe was 4.9 billion years old. The discovery paper, posted to the arXiv preprint server on Oct. 23, presents a prediction for when the rest of the distorted images of SN Ares will arrive.
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The medical examiner ruled Alex Rivera’s death an accidental overdose of fentanyl, cathinone and xylazine; a forensic pathologist said the restraint was not a significant contributing factor
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Oneida Police Chief Steven Lowell said calls for service are up 25% and criminal offenses up 39%, and that public talk of layoffs is creating uncertainty among his staff
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In propulsion system design, engineers have long faced a trade-off between solid and liquid rocket fuels. Each has advantages and disadvantages, and in an effort to try to min/max the efficacy of different types of fuel, researchers have long placed an emphasis on a hybrid between solids and liquids—in other words, they’ve been working with gels. Unfortunately, gels have their own sets of problems to deal with.
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SpaceX’s Starship spacecraft was “healthy” as it orbited the Earth and on track to return Saturday to its Texas launch site, where Elon Musk’s company was planning to “catch” the vehicle for the first time.
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SpaceX’s attempt to recover its entire Starship back at the launch pad was thwarted when the booster fell into the Gulf of Mexico and exploded Friday, but the spacecraft still soared into orbit in its boldest test yet.
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Fusion power is expected to be a sustainable energy source that emits no carbon dioxide during electricity generation. To achieve this, research is underway worldwide to confine high-temperature plasma using magnetic fields. To initiate a fusion reaction, high-energy particles or waves must be injected from outside to heat the plasma to extremely high temperatures.
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The Mesa Police Department officer had his emergency lights on and windows down when the device detonated near the rear driver-side tire
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A team of astronomers recently identified a red giant star with an unseen binary companion after examining data from the Large Sky Area MultiObject Fiber Spectroscopic Telescope (LAMOST) and the Apache Point Observatory Galactic Evolution Experiment (APOGEE). Although the companion object can’t be observed visually, astronomers can see the gravitational effects it has on the red giant star.
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Mayor Zohran Mamdani’s proposal could shift protest response duties to a civilian de-escalation team, with NYPD officers staged nearby to intervene when necessary
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A team of physicists and computer scientists led by researchers at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory developed a new artificial intelligence (AI) approach that learns on its own to separate important high-energy particle jet signals from the enormous background of particles recorded in relativistic heavy-ion collisions, where two beams of heavy ions collide at near the speed of light.
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Douglas County Sheriff Darren Weekly said he personally apologized to Parker police officers after reviewing bodycam video of the commander’s conduct
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A star’s explosive demise has added a shiny new feature to NGC 1433, a barred spiral galaxy approximately 50 million light-years away in the southern constellation Horologium (the Pendulum Clock). New images of supernova SN 2026ahvu from the U.S. Department of Energy–fabricated Dark Energy Camera (DECam) and the Gemini South telescope capture the explosion against its galactic surroundings, recording an event that is changing in appearance from night to night.
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