We’ve always figured there was a super massive blackhole at the heart of the Milky Way, but we’ve never had the empirical evidence to declare it as fact. It has been a thorn in the side of modern astronomers for a good while now.

16 years of constant monitoring of stellar movement will change things like that.

German astronomers have been tracking the movement of 28 stars as they orbited around an object with a mass equivalent to four million of our suns. (That’s one of those mind boggling, unconvievable numbers that might as well just as exist as a catch-all like “fuck-off big”.)  The object’s invisibility to the scientists’ telescopes, and its relatively small size means that it can be only one thing – a black hole.

Full stories are as follows:
BBC
NewScientist
Space.com
ScienceDaily