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A particle accelerator that slams electrons together here on Earth has achieved temperatures colder than those of outer space. Using the X-ray free-electron laser at the Department of Energy’s SLAC National Accelerator Laboratory  –  part of an upgrade project to the Linac Coherent Light Source (LCLS), called LCLS II  – scientists chilled liquid helium to minus 456 degrees
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Congress held an open congressional hearing on Tuesday on unidentified aerial phenomena, or UAPs – better known as unidentified flying objects – for the first time in five decades.  The hearing, held before a US House Intelligence subcommittee, included testimony from defense officials following a nine-page report released last year, which investigated more than 140 instances of strange sightings
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As air pollution decreases in the western Northern Hemisphere, several new climate simulations suggest tropical cyclones in the Atlantic may increase. The forecast is troubling, though not necessarily a surprise. When tiny aerosols like dust, soot, and sulfates are airborne, they create smog that can dim sunlight and cool Earth’s atmosphere and surface. Broadly speaking,
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All heatwaves today bear the unmistakable and measurable fingerprint of global warming, top experts on quantifying the impact of climate change on extreme weather said Wednesday. Burning fossil fuels and destroying forests have released enough greenhouse gases into the atmosphere to also boost the frequency and intensity of many floods, droughts, wildfires, and tropical storms,
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Modern technology pulses with a heartbeat measured in microseconds. From global positioning systems to communications networks, it’s vital every component falls into near-perfect synch. Based on standards determined by a specialized task group, signals sent through optic fiber or down from an orbiting satellite tend to ensure time-sensitive technology matches moments down to the nanosecond.
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Strap yourselves in, something really cool is coming. Scientists from the Event Horizon Telescope (EHT) Collaboration are about to present the world with new information about our galaxy. The exact contents of the announcement have been closely guarded by the scientific community, but it’s being called a “groundbreaking discovery in the Milky Way”.  You can
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All four science instruments on NASA’s James Webb Space Telescope have achieved “perfect alignment” in advance of the telescope’s official debut this summer, project officials said in a news teleconference on Monday (May 9). “I’m delighted to report that the telescope alignment has been completed with performance even better than we had anticipated,” Michael McElwain, James