2019 February 13
originally posted on facebook

This is old news, but I only just found out: in 2017 a neutron star merger was observed by both gravitational and electromagnetic waves! Aside from the usual confirmations, in particular this confirmed that such mergers are the origin of short gamma ray bursts and are the origin of most heavy elements (heavier than iron). It is estimated that the gold and platinum produced was “vastly” more than the mass of the Earth.

https://profmattstrassler.com/2017/10/17/the-significance-of-yesterdays-gravitational-wave-announcement-an-faq/

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