• earthsky.org | 1/7/2019 | Deborah Byrd
    People often ask us about flashes in the night sky, and – over the past 20 years – many of those flashes turned out to be flares from communications satellites put into orbit by the Iridium SSC...
    613 views tingting2000
  • phys.org | 10/8/2018 | Staff
    Sagittarius A* (Sgr A*), the supermassive black hole at the center of our Milky Way Galaxy, is 100 times closer to us than any other SMBH and therefore a prime candidate for studies of how matter...
    360 views boti

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