Skip to content Universe Today Space and astronomy news Menu Videos Newsletter Podcast Contact Us Support Us Log in The field in which the ZS7 galaxy merger was observed by JWST . Courtesy ESA Webb , NASA , CSA , J . Dunlop , D . Magee , P . G . Pérez-Gonzà lez , H . Ãbler , R . Maiolino , et . al Posted on May 16, 2024 May 16, 2024 by Carolyn Collins Petersen Webb Sees Black Holes Merging Near the Beginning of Time A long time ago , in two galaxies far , far away , two massive black holes merged . This happened when the Universe was only 740 million years old . A team of astronomers used JWST to study this event , the most distant and earliest detection of a black hole merger . ever Such collisions are fairly commonplace in more modern epochs of cosmic history and astronomers know that