Astronomers Discover First Isolated Star Mass Black Hole

The black hole is 5,000 light years away. This black hole was discovered thanks to its gravitational force acting as a gravitational lens, magnifying the light of a screen star 19,000 light-years away. The black hole was initially spotted by two ground-based surveys, the Polish-led Optical Gravitational Lensing Experiment (OGLE) using mostly the Las Campanas […]

Astronomers Discover First Isolated Star Mass Black Hole

The black hole is 5,000 light years away. This black hole was discovered thanks to its gravitational force acting as a gravitational lens, magnifying the light of a screen star 19,000 light-years away. The black hole was initially spotted by two ground-based surveys, the Polish-led Optical Gravitational Lensing Experiment (OGLE) using mostly the Las Campanas […]