The First Photograph of a Planet Orbiting a Binary Brown Dwarf-Black Hole System (1995)
This is the first photograph ever taken of a planet orbiting a binary brown dwarf-black hole system. The photograph was taken in 1995, and it is a remarkable achievement in the field of astronomy. It shows the planet orbiting the two brown dwarfs, which are both orbiting the black hole at
A black hole is an astronomical body so compact that its gravity prevents anything, including light, from escaping. Albert Einstein's theory of general relativity, which describes gravitation as the curvature of spacetime, predicts that any sufficiently compact mass will form a black hole. The boundary of no escape is called the event horizon. In general relativity, crossing a black hole's event horizon traps an object inside but produces no locally detectable change. General relativity also predicts that every black hole should have a central singularity, where the curvature of spacetime is infinite.