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How a Perfect Gravitational Wave Tests Einstein

On 14 January, 2025, two colliding black holes sent the clearest gravitational wave signal ever recorded rippling across the universe to Earth’s detectors. This remarkably crisp signal, designated GW250114, has allowed physicists to conduct the most stringent test yet of Einstein’s general relativity by measuring multiple “tones” from the collision. The wave passed the test with flying colours, but researchers remain optimistic that future detections might finally reveal where Einstein’s century old theory breaks down, potentially offering the first glimpses of quantum gravity. from Universe Today https://ift.tt/7jGtKbc via IFTTT
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The Galaxy Cluster That Grew Up Too Fast

Astronomers have discovered a massive galaxy cluster assembling itself just one billion years after the Big Bang, there’s just one problem… it shouldn’t exist! Current models suggest it shouldn’t have formed when it did, Using NASA’s Chandra X-ray Observatory and James Webb Space Telescope working in tandem, scientists spotted JADES-ID1, a protocluster containing at least 66 galaxies wrapped in a vast cloud of million degree gas forming during what should have been the universe’s infancy. from Universe Today https://ift.tt/jST01Ja via IFTTT
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Scientists Continue to Trace the Origin of the Mysterious "Amaterasu" Cosmic Ray Particle

The Amaterasu particle was detected in 2021 by the Telescope Array experiment in the U.S. It is the second-highest-energy cosmic ray ever observed, carrying around 40 million times more energy than particles accelerated at the Large Hadron Collider. Such particles are exceedingly rare and thought to originate in some of the most extreme environments in the universe. from Universe Today https://ift.tt/tsOamYZ via IFTTT
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How Wood Records the Sun’s Most Violent Outbursts

Ancient trees hold secrets about the most violent storms our Sun has ever unleashed, catastrophic bursts of radiation that dwarf anything modern civilisation has experienced. Scientists have discovered radioactive carbon signatures frozen in tree rings from solar storms so powerful they could cripple our satellite networks and power grids today. from Universe Today https://ift.tt/0ZwAXea via IFTTT
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Sediment Cores Track Timing Hiccups in Earth's Magnetic Field Flips

Every so often (in geologic time) Earth's magnetic field does a flip. The north and south magnetic poles gradually trade places in a phenomenon called a geomagnetic reversal. Scientists long thought this happened every ten thousand years or so. However, new evidence from deep ocean cores show that at least two ancient reversals didn't follow that script. One took about 18,000 years to flip and the other took 70,000 years. Such lengthy time lapses could have seriously affected Earth's atmospheric chemistry, climate, and evolution of life forms during the Eocene period of geologic history. from Universe Today https://ift.tt/tma0SPZ via IFTTT
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Non-biologic Processes Can't Fully Explain the Organics Curiosity Found on Mars, Providing More Potential Evidence of Life.

In a new study, researchers say that non-biological sources they considered could not fully account for the abundance of organic compounds in a sample collected on Mars by NASA’s Curiosity rover. from Universe Today https://ift.tt/tvZPOeW via IFTTT
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Look Out Alderaan. This Black Hole Is More Destructive Than The Death Star

Several years ago, an automated sky survey spotted a distant supermassive black hole that tore apart a star. The star that got too close, and the resulting tidal disruption event released a lot of energy. But the SMBH is exhibiting a strong case of cosmic indigestion, and has been burping out the remains of the star for four years. And it keeps getting brighter and brighter. from Universe Today https://ift.tt/HgcoUFX via IFTTT
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