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    What the Rumored Neutron Star Merger Might Teach Us

    In a sense, neutron star mergers are the largest hadron colliders ever conceived.Image by NASA Goddard Space Flight Center / Flickr This month, before LIGO, the Laser Interferometer Gravitational Wave Observatory, and its European counterpart Virgo, were going to close down for a year to undergo upgrades, they jointly surveyed the skies. It was a […]

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    The Astrophysicists Who Faked It

    The inside story of the gravitational wave signal injection.

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    The Most Massive Object in the Universe—How Was It Created?

      The galaxy known prosaically as M87 doesn’t look like much. Unlike beautiful spiral galaxies (including the Milky Way), M87 appears as an orangish blob of stars through telescopes. Its only noticeable feature is the long streamer of gas emanating from the galactic center. The source of that jet is far from prosaic, however: It’s […]