Related video above: Space junk crashed through family's roof, NASA says The so-called “sleeping giant,” named Gaia ... closest known black hole to Earth. The closest black hole is Gaia ...
The so-called “sleeping giant,” named Gaia BH3 ... making it the second-closest known black hole to Earth. The closest black hole is Gaia BH1, which is located about 1,500 light-years away ...