Using the Subaru telescope and the Canada-France-Hawaii Telescope (CFHT), an international team of astronomers has observed an ultra-diffuse galaxy known as F8D1. The observational campaign has revealed an enormous tidal stream emanating from this galaxy. The finding was presented September 21 on the arXiv pre-print server.
Click here for original story, Ultra-diffuse galaxy F8D1 has a giant tidal tail, observations find
Source: Phys.org