Week 37 at the Pole

Just because the sun’s coming up, doesn’t mean it’s getting warmer yet. In fact, they’ve had some tremendously cold days at the Pole, with the thermometer hitting –100 F last week. […]

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The hardest search yet: cosmogenic neutrinos wait for next generation detectors

The IceCube Collaboration has, once more, looked for extremely high-energy neutrinos. And now, after analyzing nine years of IceCube data, scientists set the most stringent limits on the existence of cosmogenic neutrinos to date. As a result, the idea that ultra-high-energy cosmic rays are mostly protons is vanishing. These results were published in the journal Physical Review D last week. […]

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Week 36 at the Pole

As the sun rises and brightens the sky, thoughts turn to the arrival of summer visitors. Still a ways off, but there is plenty of station prep and cleaning to be done in the meantime. Outside, the IceCube Lab and some other structures are now becoming visible again in daylight. […]

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Week 35 at the Pole

The satellite dome sits frosted over as it waits for the sunrise—here it’s shown backlit by a full moon. It’s a peaceful scene, which is also how IceCube’s winterovers generally described last week at the Pole. […]

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Understanding inelasticity in high-energy neutrino interactions with IceCube

The IceCube Collaboration has recently presented its first measurements of the neutrino inelasticity, which are also the first-ever at very high energies—from 1 TeV up to nearly 800 TeV. The inelasticity distribution was found to be in good agreement with Standard Model prediction and was later used to perform other measurements, such as charm production in neutrino interactions or flavor composition of astrophysical neutrinos. […]

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Week 34

IceCube winterover Johannes’s camera withstood a time-lapse session outdoors last week—a little frosty looking afterward but still able to crank out some fine-looking photos. […]

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Week 33 at the Pole

False alarm from week 32—aurora viewing remained in full force last week at the Pole. In fact, the skies were graced with some purple auroras, pretty rare in general, even at the bottom of the world. […]

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Week 32 at the Pole

Who knows, but it could be that this fantastic shot is the last we’ll see of the auroras from the Pole for a while. So, why not go out with a bang—big, bright, and set against a starry Milky Way backdrop. […]

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Week 31 at the Pole

It was a pretty busy time last week at the Pole. IceCube’s winterovers had some unrelated hardware incidents that required troubleshooting and fixing, and a trip out to the IceCube Lab. And look what a great photo winterover Raffaela captured on that trip, with the ICL backlit by a full moon. […]

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