On August 17, 2017, the Laser Interferometer Observatories (LIGO) detected a passing gravitational wave. They alerted electromagnetic (EM) follow-up partners around the globe, to capture in various bands of the electromagnetic spectrum the light of merging neutron stars.
This marks the first detection of merging neutron stars through gravitational-wave astronomy, and the first EM follow-up to such an event.
The South African Astronomical Observatory, an EM Follow-up Partner to LIGO, was able to capture optical, spectra, and infrared of this event, as described in this short-film.
To learn more visit saao.ac.za and ligo.org