Tag: gravitational microlens
Discovery of a drifting black hole in the Milky Way
For the first time, an isolated stellar black hole — that is, without a companion — has been detected. This invisible object revealed itself by producing a gravitational microlens. You…
First unambiguous detection of a wandering stellar black hole
For the first time, an isolated stellar black hole — that is, without a companion — has been detected. This invisible object revealed itself by producing a gravitational microlens. You…