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Tag: Chandra

  • First Light Detected from Gravitational Wave Event on This Week @NASA – October 20, 2017

    First Light Detected from Gravitational Wave Event on This Week @NASA – October 20, 2017

    For the first time, NASA scientists have detected light tied to a gravitational-wave event. The gravitational wave – caused by an explosive merger of two neutron stars, about 130 million light-years from Earth – produced a gamma-ray burst and a rarely seen flare-up called a “kilonova”. The phenomenon was captured by our Fermi, Swift, Hubble, Chandra and Spitzer missions, along with dozens of NASA-funded ground-based observatories. Also, Trio of Station Spacewalks Completed, Fresh Findings from Cassini, and Test of SLS RS-25 Flight Engine!

    This video is available for download from NASA’s Image and Video Library: https://images.nasa.gov/#/details-NHQ_20171023_This%20Week%20@%20NASA.html

  • NASA’s Chandra Finds “Nearby” Black Holes

    NASA’s Chandra Finds “Nearby” Black Holes

    Astronomers using NASA’s Chandra X-ray Observatory have discovered the first pair of supermassive black holes in a spiral galaxy similar to the Milky Way. Approximately 160 million light years from Earth, the pair is the nearest known such phenomenon. The black holes are located near the center of the spiral galaxy NGC 3393. Separated by only 490 light years, the black holes are likely the remnant of a merger of two galaxies of unequal mass a billion or more years ago.