NASA just found there are WAY more black holes than we thought
Jun 26, 2015

We've known for some time that there are a large number of black holes out there in the universe, but it turns out previous estimates undershot the actual numbers by quite some margin. Thanks to the results of a broad scan of the sky by NASA's Wide-field Infrared Survey (WISE) telescope, we now know the number of black holes is actually much, much bigger than we thought.