(CNN)The fastest-growing black hole in the universe is 34 billion times the mass of our sun and feasts on a meal the equivalent of our sun each day, according to a new study. This massive, hungry black hole was first identified and studied by researchers in May 2018. Previously, they believed it consumed the mass equivalent to our sun every two days. Now, they have a better understanding of this monster black hole and its gluttonous behavior. The study published Wednesday in the journal Monthly Notices of the Royal Astronomical Society. The black hole is known as J2157 and exists...