IceCube, the Antarctic neutrino detector that in July of 2018 helped unravel one of the oldest riddles in physics and astronomy — the origin of high-energy neutrinos and cosmic rays — is getting an upgrade.
Even though twilight occurs only twice a year at the South Pole, it is a drawn out process that lasts weeks instead of hours
It was all about the sun last week at the Pole. IceCube winterovers got to see, and photograph, the sun’s green flash.
Unstable weather last week cleared for a brief time, showing a bright sun along the horizon.
Although winter is fast approaching and the sun is quite low, there is still plenty of daylight for taking outdoor photos.
The sun is getting noticeably lower in the sky at the South Pole. IceCube’s winterovers also note that it’s starting to get cold.
