BIG BLACK HOLES FOUND
Some of the most massive black holes ever seen have been uncovered 3.5 billion lightyears away. They are estimated to be 10 billion times the mass of the Sun, making them ultramassive black holes. “Are they so big because they had a head start or because certain ideal conditions allowed them to grow more rapidly over billions of years? For the moment, there is no way for us to know,” says Mar Mezcua from the Institute of Space Sciences in Spain, who took part in the study.