Video Archive

  • Cosmic Clocks: Galaxies Behave Like Clocks, Rotating Once Every Billion Years

    An international team of astronomers from Australia, China and the United States has discovered that all galaxies rotate once every billion years, no matter how big they are.

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  • NASA’s NICER Mission Maps ‘Light Echoes’ of New Black Hole

    Scientists have charted the environment surrounding a stellar-mass black hole that is 10 times the mass of the Sun using NASA’s Neutron star Interior Composition Explorer (NICER) payload aboard the International Space Station.

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