Early spectra of the gravitational wave source GW170817: Evolution of a neutron star merger. (sciencenews.org)
B. J. Shappee et al., «Early spectra of the gravitational wave source GW170817: Evolution of a neutron star merger,» Science (16 October 2017) (sciencemag.org)
Later this year, European partners of the LIGO collaboration plan to restart their revamped gravity wave observatory, Advanced Virgo, near Pisa, Italy, providing a crucial third ultrasensitive detector for pinpointing gravity wave sources. (sciencenews.org)