KVIG Informative

The top prize in physics just went to an experiment the federal government mostly paid for and built beneath the South Pole. A House spending bill would cut the agency behind it by a fifth.

Francis Halzen won the 2026 Nobel Prize in Physics on October 6 for his contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin, the Royal Swedish Academy of Sciences announced. Halzen, 82, is a professor at the University of Wisconsin–Madison and the first sole winner of the physics prize since 1991, according to Physics World.

IceCube sits in the ice near the Amundsen–Scott station at the South Pole. Construction ran from 2004 to 2010 and cost $279.5 million, Forbes Belgium reported. The National Science Foundation paid $242.1 million of that, and partners in Belgium, Germany and Sweden covered the remaining $37.4 million. The detector reached full operation in 2011, according to the American Institute of Physics.

Halzen first proposed using South Pole ice to detect neutrinos in 1988, together with a colleague, according to the chair of the Nobel Committee for Physics. Forbes Belgium reported that after about 15 years of development and a decade of construction, no discovery was guaranteed. Most sources of high-energy neutrinos still have not been identified, the magazine added.

The government kept investing after the detector was built. In 2019, NSF approved $23 million toward a $37 million upgrade that adds seven strings of optical sensors to the 86 already frozen into the ice, according to the University of Wisconsin–Madison. Plans for a larger extension called IceCube-Gen2 have since been submitted, the American Institute of Physics said.

The budget moving through Congress points the other way. The House Appropriations Committee approved a fiscal 2027 spending bill on May 13, by a vote of 32-28, that would give NSF $7 billion. That is about $1.75 billion, or 20%, below this year’s $8.75 billion, according to the Association of American Medical Colleges. The research account would fall 10.3%, to $6.4 billion. The White House asked for roughly $4 billion, less than half the current level.

None of that has taken effect. President Trump signed a stopgap bill on September 2 that holds federal agencies at their fiscal 2026 funding levels through December 11, the White House confirmed. Final decisions on 2027 funding are not expected until after the November midterms, according to Harvard’s Office of Federal Relations.

Halzen’s idea took 23 years to go from a 1988 proposal to a fully operating detector in 2011. A Congress that funds science one stopgap at a time will decide in its lame-duck session whether the country keeps making bets that slow.