Submission + - Huge black hole tips the scales (reversemonster.org)
porkpickle writes: "http://reversemonster.org/rmblog/huge-black-hole-tips-the-scales
Astronomers have weighed the biggest known black hole in the Universe.
The monster celestial object is 18 billion times more massive than our own Sun, says a team from Finland — six times larger than the previous record.
The object, called OJ287, is orbited by a smaller black hole, which allowed its mass to be measured very accurately.
The finding also enabled the researchers to test Einstein's theory of gravity for the first time in a strong gravitational field."
