near-Earth

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A near-Earth microquasar emerges as a source of powerful radiation

Sources of high-energy cosmic rays in the vicinity of the microquasar V4641 Sag, on the left with energies above a teraelectronvolt, on the right—hundreds of teraelectronvolts. The location of the microquasar is marked with a yellow dot. Credit: IFJ PAN / HAWC Modern astronomy has clung to the belief that the relativistic outflows or jets

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