A rogue 'Jupiter' size Black Hole roaming the Milky Way

This is interesting, a small, middleweight black hole estimated to be the size of Jupiter, but with the mass of 33,000 suns. Which means, it is a densely active 'mid-size' black hole.  Bigger than the smaller ones theorized and detected, but smaller than the super massive black holes which reside in the middle of Galaxies.  Black holes are undetectable via any gauge of the electromagnetic spectrum apart from very subtle discrepancies, one example is when a star orbits a back hole – its light turns a reddish hue, thus a redshift can been seen in contrast to an object that is invisible; a Black Hole emits no light.  The other more mainstay way of detecting and measuring a black hole is the swirling matter (gases) gathered at its event horizon.  Which in turn creates a distinguishable movement of matter, that has been patterned into what we know as directed via scientific calculations the artistic impressions of black holes.

From Space.com

"...scientists can't see any black holes directly — but new research tracking a celestial cloud structure saw strange behavior that may have been caused by just such an invisible object. That data came courtesy of the Atacama Large Millimeter/submillimeter Array (ALMA), a set of 66 telescopes scattered across the Atacama Desert in northern Chile. "When I checked the ALMA data for the first time, I was really excited because the observed gas showed obvious orbital motions, which strongly suggest an invisible massive object lurking," lead author Shunya Takekawa, a physicist at the National Astronomical Observatory of Japan, told New Scientist."  

A mid size destroyer of worlds:

"...Scientists think tiny black holes and supermassive black holes are pretty common, but that there aren't a whole lot of medium-size black holes. Astronomers believe they've spotted two other black holes in this size range near the heart of the Milky Way. All three, if future observations continue to see evidence for them, may be escapees from the giant black hole at our galaxy's center."

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