The signal came in on ANZAC Day, ripples in space-time from the merger of two neutron stars an estimated 500-million light years away. But where it happened is still a mystery.
Articles on Advanced Virgo
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More ripples in space-time have been detected from merging pairs of black holes, one of which was the most massive and distant gravitational-wave source ever observed.
Until the recent observation of merging neutron stars, how the heaviest elements come to be was a mystery. But their fingerprints are all over this cosmic collision.
A LIGO team member describes how the detection of a gravitational wave from a new source – merging neutron stars – vaults astronomy into a new era of ‘multi-messenger’ observations.
The gravitational wave itself is the least exciting part of the announcement from LIGO and Virgo. Observing this new source answers many longstanding questions.
State of the art detectors have found another signal from a pair of collapsing black holes – the consequences could be momentous.
Top contributors
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Professor of Physics, Syracuse University
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Professor of Astronomy, Harvard University
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Research Associate Professor of Astronomy, Wesleyan University
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Professor of Astrophysics, University of Glasgow
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Professor of Physics, Penn State
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Professor, Monash University
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Emeritus Professor, ARC Centre of Excellence for Gravitational Wave Discovery, OzGrav, The University of Western Australia
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Research fellow, The University of Western Australia
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Professor, Radio Astronomy, University of Sydney