There are
“cosmic rays”
Thursday, December 1, 2016 -
2:30pm to 3:30pm
Nahee Park, University of Chicago, will be giving a talk, "Studies of Galactic Cosmic Rays with Direct and Indirect Measurements," as part of the NPAC Forum on Thursday, December 1.  The talk is ...
Tuesday, October 11, 2016 - 2:30pm

A recent work by Markus Ahlers, a John Bahcall fellow at WIPAC, has shown that fluctuations in the cosmic-ray dipole anisotropy can be understood once the local magnetic field and the presence of local CR sources are taken into account.

depletion thickness
Tuesday, November 3, 2015 - 2:45pm

If learning that you can turn your smart phone into a cosmic-ray telescope was astonishing, you will be now stunned to read how you can use cosmic particles to peek into your phone and measure one of its components.

Tuesday, October 14, 2014 - 3:15pm

The High-Altitude Water Cherenkov Observatory (HAWC) is designed to study the sky in TeV gamma rays and observe the most energetic objects in the known universe. Due to its size and location, the observatory will also observe millions of cosmic rays every day, allowing for very precise measurements of the cosmic-ray anisotropy.

Tuesday, October 7, 2014 - 8:00pm

A search for neutrino interactions inside IceCube brought evidence of an extraterrestrial neutrino flux. Now the IceCube Collaboration has expanded the search, lowering the range of deposited energy down to 1 TeV.

Wednesday, October 1, 2014 - 11:00am
Justin Vandenbroucke, a University of Wisconsin-Madison assistant professor of physics and researcher at the Wisconsin IceCube Particle Astrophysics Center (WIPAC), leads the development of an app that can turn your cell phone into a cosmic ray detector.
HAWC graphic
Friday, March 20, 2015 - 1:15pm
High on a sleeping Mexican volcano, a new particle astrophysics observatory is about to blink to life, commencing an all-sky search for very high energy gamma rays — a search that could greatly expand the catalog of known gamma ray sources and chip away at the mystery of the cosmic rays that constantly bombard our planet.
icecube event
Thursday, July 10, 2014 - 2:00pm
How is it possible to distinguish a neutrino produced by the interaction of cosmic rays in the Earth’s atmosphere from an astrophysical neutrino when the particles themselves are identical? The idea is simple enough: atmospheric neutrinos are always produced together with other particles, including muons.
ARA graph
Monday, August 3, 2015 - 9:00am

The ARA Collaboration announces today the first results using data taken during 10 months in 2013. Researchers performed a search for UHE neutrinos that resulted in no neutrino candidates but allows setting a neutrino flux limit in the energy range where most UHE neutrinos are expected to be observed.

Physics Run graphic
Wednesday, May 20, 2015 - 10:00am
Not everyone begins a new year on January 1, right? That includes IceCubers, who decided a while ago that mid-May would be a good time to start a new year of data for the South Pole neutrino observatory.