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2018-04-25: Black Hole Swarms

  • 06:11: They spotted 92 point-like X-ray sources within one parsec, or around three light years, of the galactic center.
  • 07:03: That allow the researchers to weed out the X-ray sources that had the wrong spectra.

2017-07-19: The Real Star Wars

  • 05:45: So a powerful x-ray laser needs to start with a powerful x-ray source.
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