The nature of dark matter (DM) remains one of the greatest unsolved mysteries in modern physics. Although it is thought to make up 85% of all matter in the universe, scientists have yet to determine what it is made of. A possible candidate for DM is theoretical particles called weakly interacting massive particles. When these […]
The IceCube Neutrino Observatory, embedded in a cubic kilometer of Antarctic ice, searches for weakly interacting particles called neutrinos that are able to travel undisturbed through the cosmos. Of interest are high-energy astrophysical neutrinos that can arise from cosmic-ray interactions with matter or photons in astrophysical sources. In the emerging field of multimessenger astronomy, measurements […]
The IceCube Neutrino Observatory, a cubic-kilometer array of optical sensors buried in Antarctic ice, detects elusive subatomic particles called neutrinos. When a neutrino interacts with a molecule of ice, it produces secondary particles that emit blue light, which is then detected by IceCube. Known as an “event,” its signals or light patterns are used to […]
In 2022, the IceCube Neutrino Observatory at the South Pole announced evidence for high-energy neutrinos spewing from the “nearby” active galaxy NGC 1068. NGC 1068 is an active galactic nucleus (AGN) with a central, supermassive black hole that actively gobbles up surrounding matter. Classified as a Seyfert galaxy, NGC 1068 is not dominated by a […]
In 2019, the U.S. National Science Foundation, together with US institutional and international partners, approved funding of the IceCube Upgrade project, an improvement that would significantly push the scientific capabilities of the IceCube Neutrino Observatory. Seven years later, the IceCube Upgrade has now been successfully deployed, marking the first significant expansion of IceCube since its […]