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W boson spotted in Antarctica - Cosmos Magazine


W boson spotted in Antarctica
IceCube observatory spots elementary particle needle in a galactic haystack.
The IceCube Observatory in Antarctica. Credit: Erik Beiser / IceCube / NSF
On 6 December 2016, a high-energy particle hurtled from outer space and through an Antarctic ice sheet, where it slammed into an electron at nearly the speed of light. The enormously energetic collision created a completely different particle, which rapidly decayed into a cascade of others.
This event might have gone unnoticed – if a massive matrix of neutrino-detectors hadn’t been sunk into the ice, ready to capture such astrophysical phenomena.
In a paper published in Nature, high-energy astrophysicists at the IceCube Observatory  in Antarctica confirm that this 2016 collision provides observational evidence for a theory put forth in 1960, solidifying our understanding of the Standard Model of particle physics. ....

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The Strange Events at Our Milky Way's Supermassive Black Hole --(Weekend Feature)


 
 
During the past two years, two strange events have occurred at our Milky Way’s violent center. In October of 2019, Milky Way’s central black hole, SgrA (literally “Sagittarius A-star”) which until May, 2019, when it suddenly brightened, appeared like a massive, dormant volcano, a sleeping monster, a slumbering region of spacetime where gravity is so strong that “what goes into them does not come out”. A “one-way door out of our universe,” said Event Horizon Telescope director and astronomer Shep Doeleman of the Harvard Smithsonian Center for Astrophysics about discoveries of the enigmatic objects stranger than science fiction that led to three 2020 Noble Prize awards in physics. ....

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