Author Archives: Alisa King-Klemperer

This diagram describes the particle interactions occurring between high-energy cosmic rays and the ambient radiation field, where neutrinos and gamma-rays are produced via the delta-resonance. Credit: Kotoyo Hoshina
WIPAC study provides a clue about a feature in the spectrum of cosmic neutrinos

At the South Pole, the IceCube Neutrino Observatory, embedded in a cubic kilometer of Antarctic [...]

Probing the Earth’s interior using atmospheric neutrinos

The properties of the interior of the Earth remain one of science’s greatest unsolved mysteries. [...]

A group of people posing in a lab.
WIPAC hosts the 2026 summer meeting of the CTAO-US/SCT Collaboration

Between July 13 and 15, the Wisconsin IceCube Particle Astrophysics Center (WIPAC) hosted members of [...]

Shown is an artist's representation of cosmic neutrinos that are detected by IceCube. The event type shown is a cascade event, which was used in both analyses. The inset figure shows the combined fit to the diffuse extragalactic astrophysical neutrino flux normalization. Credit: Brad Sherman, IceCube Collaboration
WIPAC scientists observe a spectral change in the astrophysical neutrino flux

The IceCube Neutrino Observatory, embedded in a cubic kilometer of Antarctic ice, searches for weakly [...]

Auroras and the Milky Way in sky above the IceCube Lab.
IceCube Neutrino Observatory gets a major upgrade beneath the ice

This story has been modified by one originally published by the University of Wisconsin–Madison. After [...]

IceCube search for a correlation between galaxies and neutrinos

A prototype of the SST camera, showing only a quarter of its pixels installed.
UW–Madison team awarded NSF grant to develop cameras for the world’s largest high-energy gamma-ray observatory

This story was adapted from the WashU and CTAO releases for the University of Wisconsin–Madison. [...]

Promotions for three WIPAC faculty

This story was originally published by the University of Wisconsin–Madison physics department. Congratulations to Associate [...]

WIPAC at ICRC 2025

The 39th International Cosmic Ray Conference (ICRC), the largest conference in the world for cosmic [...]

Karle, Lu lead team awarded Research Forward funding

This story was originally published by the University of Wisconsin–Madison physics department. The Office of [...]