Somewhere out in the depths of the Milky Way galaxy, something stirs.
"Confirming the existence of this long-sought signal paves the way for the future of astroparticle physics in our galaxy," writes physicist Luigi Antonio Fusco from Italy'sIt also provides us with the first neutrino map of our Milky Way, and a new way of viewing our galactic plane.
Poor little old Earth is peppered constantly by cosmic bullets of protons and charged atomic cores shot from somewhere out in the Milky Way, accelerated to insane speeds by powerful fields. Tracing many back to their source is literally far from straight forward. Catching the high energy photons has delivered a rough map of where in the galaxy cosmic rays could be born, though it's hard to rule out other sources of gamma rays, such as energetic electrons also smashing into things.shimmer on the edge of existence, giving them the quaint title of 'ghost particle'.
"The authors reduced this background by excluding the main type of atmospheric neutrino, muon neutrinos. Muon neutrinos generate distinctive straight tracks, which allow easy reconstruction of the particle direction necessary for neutrino astronomy."
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