Astronomers have made a groundbreaking discovery, tracing a ghostly cosmic particle to a distant galaxy known as the ‘Shadow Blaster’. This galaxy, located 11 billion light-years away, is believed to be the source of the high-energy neutrino detected by the IceCube Neutrino Observatory in Antarctica.

The Discovery

The IceCube detector picked up the presence of a high-energy neutrino in 2021, but the source of the particle was unknown. Astronomers carried out follow-up observations using various telescopes, including the East Asian Observatory’s James Clerk Maxwell Telescope and the Atacama Large Millimeter/submillimeter Array in Chile.

The observations revealed a galaxy rich in star formation, which was nicknamed ‘Shadow Blaster’ due to its dusty nature, making it nearly invisible in optical light. The galaxy is filled with trillions of times the luminosity of our sun in infrared light, and its location matches the direction of the neutrino detection.

Understanding Neutrinos

Neutrinos are abundant across the universe, but they are difficult to detect due to their lack of electric charge and minimal interaction with matter. The discovery of the ‘Shadow Blaster’ galaxy provides new insights into the origins of these ghostly particles. Star-forming galaxies like ‘Shadow Blaster’ could be a key source of high-energy neutrinos, which can provide a new way to study how galaxies formed stars, built magnetic fields, and accelerated cosmic rays in the early universe.

Original reporting: KTVZ (Central Oregon) — read the source article.