If Max Planck Institute for Astrophysics researcher Laura Olivera-Nieto and her colleagues are right, they may have just pinpointed one of the sources of the high-energy cosmic rays that occasionally zip past Earth from the far reaches of the universe.
The astronomers used a telescope called the High Energy Stereoscopic System, or HESS, to observe gamma ray jets from SS 433, a black hole orbiting a mid-sized star at the heart of the Manatee Nebula.
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