Astronomers may have detected the first-ever wandering black hole thanks to the ingenuity of researchers and the precision measurements made possible by the Hubble Space Telescope, CNET reported.
NASA estimates that there are more than 100 million black holes in our galaxy, the Milky Way, even though nobody has so far identified one conclusively. It is difficult to gather evidence of an object that does not reflect light. The blackhole photos that have been popular on the internet are actually images of the Event Horizon and not a Black Hole per se.
Astronomers, therefore, turned to another ability of black holes to warp space to detect them. When a black hole passes between Earth and a distant star, the warping of space results first in deflection and then amplification of starlight. The telescopes gaping at the sky for such events can capture this phenomenon called gravitational microlensing, which is then followed up by the Hubble Space Telescope.
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