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Astronomers trace a ghostly cosmic particle to distant ‘Shadow Blaster’ galaxy
A flare in the dusty galaxy helped researchers link the particle to a star-forming source that may account for about 20% of IceCube’s diffuse neutrino background.
By Ashley Strickland, CNN (CNN) — A distant star-forming galaxy nicknamed the “Shadow Blaster” could have sent a ghostly cosmic particle hurtling toward Earth. Astronomers believe they have traced the particle‘s origin to 11 billion light-years away, marking a step forward in understanding the mysterious neutrinos. Neutrinos are abundant across the universe, earning a reputation as ghost particles because they possess no electric charge, have li…