The NSF-supported Dark Energy Survey has released an enormous new data set, one that includes measurements of more than 400 million stars. From that data, astronomers have found evidence for 11 previously unknown stellar streams, each feeding stars into the Milky Way galaxy.
Full story at https://www.noao.edu/news/2018/pr1801.php
National Optical Astronomy Observatory
This is an NSF News From the Field item.