Barausse Published September 21, 2018 at 2048 × 1365 in Gravitational waves measure colour of black holes Paolo Pani Tell your friends about CQG+ Click to email a link to a friend (Opens in new window) Email Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to share on LinkedIn (Opens in new window) LinkedIn Click to share on Facebook (Opens in new window) Facebook Like Loading...