Earth is bathed in droves of neutrinos spewed by the Milky Way’s stars

Scientists calculated that approximately 1,000 neutrinos from distant Milky Way stars pass through a thumbnail-sized area every second, though this pales compared to the 100 million times more neutrinos from our sun. Researchers used data from the European Space Agency's Gaia spacecraft to map stellar distributions and determine neutrino emission rates throughout the galaxy's evolution. Many galactic neutrinos originate from the star-dense galactic center, potentially allowing detection by directional neutrino detectors that could distinguish them from solar particles and advance understanding of stellar physics and galaxy formation.