The future of particle physics is also written from the South Pole

A month ago, the Seattle Community Summer Study Workshop—July 17-26, 2022, at the University of Washington—brought together over a thousand scientists in one of the final steps of the Particle Physics Community Planning Exercise. The meetings and accompanying white papers put the cherry on top of a period of collaborative work setting a vision for […]

Read More »


Are extragalactic sources of ultra-high-energy cosmic rays efficient emitters of neutrinos?

The search for the sources of ultra-high-energy cosmic rays (UHECRs) is not a simple one. UHECRs, which are a mixture of protons and heavy nuclei, are the highest energy particles ever measured. They should produce “hotspots” of high-energy neutrinos if they interact with other particles near their point of origin. Six years ago, a first […]

Read More »


Confirmation of whether galactic X-ray binaries emit high-energy neutrinos awaits IceCube-Gen2

X-ray binaries (XRB) consist of a compact object, such as a neutron star or a black hole, and a noncompact, companion star. When they are close enough, material is pulled off the star and drawn onto the compact companion, releasing intense X-rays that make them some of the most luminous sources in the sky. Microquasars, […]

Read More »



IceCube at ICRC 2021

Last week marked the end of the 37th International Cosmic Ray Conference, the largest conference in the world for cosmic ray physics. This year, the entire conference was hosted virtually, which allowed more people from an expanded geographic range to attend; there were approximately 1,800 participants from 55 countries who contributed around 1,350 papers. It […]

Read More »


IceCube-Gen2 will open a new window on the universe

In a white paper recently submitted to the Journal of Physics G, the international IceCube-Gen2 Collaboration outlines the need for and design of a next-generation extension of IceCube. By adding new optical and radio instruments to the existing detector, IceCube-Gen2 will increase the annual rate of cosmic neutrino observations by an order of magnitude, and its sensitivity to point sources will increase to five times that of IceCube. […]

Read More »