Astronomers say they have discovered a black hole on our doorstep, just 1,000 light years from Earth.
It was found in a system called HR 6819, in the constellation Telescopium.
The system appears through a telescope as a single bright star, but telltale signs in the light emitted have previously revealed there to be two stars present.
Now experts say they have further analysed the data to discover there is another body within the system: a black hole with a mass over four times that of our sun, and the closest to Earth found so far.
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