Science, People & Politics issn:1751598x. Issue three 2017.

"Our results are the first ... tests (theoretical and analytical) of
superluminal propagation in the gravitational sector."

REFERENCES AND FURTHER READING
Atmospheric oxygenation three billion years ago (2013) http://www.nature.com/nature/journal/v501/ n7468/full/nature12426.html?foxtrotcallback=true
Accessed 4th August, 2017

The speed of light, and some distances in space. URL from NASA https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html
Accessed 4th August, 2017

*Abbott. BP et al (2017). "GW170104: Observation of a 50-Solar-Mass Black Hole Coalescenc at Redshift 0.2". Phys. Rev. Lett., 118, Iss 22. Published 1 June, 2017. Located online at https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.221101 DOI: https://doi.org/10.1103/PhysRevLett.118.221101
Accessed 4th August, 2017.

LIGO and VIRGO websites are: https://www.ligo.caltech.edu/ and http://www.virgo-gw.eu

Riles. K (2013). "Gravitational Waves: Sources, Detectors and Searches", Progress in Particle and Nuclear Physics. arXiv: 1209.0667v3. https://arxiv.org/pdf/1209.0667.pdf
Accessed 4th August, 2017.

Weinberg S (2013) "Physics: what we do and don't know". The New York Times, November, 2013. An accessible overview of the history, and then current understanding, of cosmological and standard-model theories of physics by Nobel laureate, Steven Weinberg.

If Gravity, General Relativity and Field Theory are not your subject the following url is a very good plain English explanation from two experts. http://w.astro.berkeley.edu/~gmarcy/astro160/papers/binary_black_hole_mergers.pdf
Accessed 11th August, 2017.

THE ARTICLE ABOVE WAS COMPLETED IN EARLY AUGUST BEFORE THE 2017 NOBEL PRIZE FOR PHYSICS HAD BEEN ANNOUNCED.

On 3rd October, 2017 the prize was awarded to Kip Thorne, Barry Barish and Rainer Weiss for their discovery of gravitational waves.

The press release located at the following URL below is from the official Nobel Prize organisation.
Acccessed 21st December, 2017.

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