NASA Hubble Space Telescope Black Hole Mass
There is an estimated 100 million black holes scattered across the stars in the Milky Way galaxy, but the Hubble Space Telescope has managed to provide direct evidence of a lone black hole drifting through interstellar space for the very first time. After six years of meticulous observations, this evidence came in the form of a precise mass measurement of the phantom object.



This wandering black hole is located approximately 5,000 light-years away in the Carina-Sagittarius spiral arm of the Milky Way. Thanks to this discovery, astronomers now estimate that the nearest isolated stellar-mass black hole to Earth might be as close as 80 light-years away. For comparison, the nearest star to our solar system, Proxima Centauri, is just over 4 light-years away. We may be just decades away from actually visiting a black hole, like this one with huge rings surrounding it.

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NASA Hubble Space Telescope Black Hole Mass

As much as we would like to say it is definitively a black hole, we must report all allowed solutions. This includes both lower mass black holes and possibly even a neutron star. Whatever it is, the object is the first dark stellar remnant discovered wandering through the galaxy, unaccompanied by another star,” said Jessica Lu of the Berkeley team.

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