Two black holes are defying the limits of science

University of Cambridge researchers have discovered that two black holes are consuming their companion stars at rates much faster than currently established limits would allow -- so fast, in fact, that the gas is ejecting at a quarter of the speed of light. To top things off, this is the first time that scientists have seen winds flowing away from ultra-luminous (and currently mysterious) X-ray sources.
The team doesn't have any firm answers what's behind the behavior around these black holes, but it notes that what we see might be the result of less-than-straightforward phenomena.

http://www.engadget.com/2016/05/02/black-holes-hint-at-mystery-object/