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Isaac Newtons theroy of the moons orbit
Isaac Newton publishes his universal law of gravitation. His calculations explain the orbital motions of the Moon, planets, and comets, and allow scientists to calculate the masses of astronomical objects. Later in the future two scientists apply Newtons same laws of gravity to calculate that a star of size and density could prevent light from leaving its surface, making a dark star. -
John Michell’s "Dark Stars"
John Michell,suggests that the surface gravity of some stars could be so strong that not even light could escape from them.Michell even calculates that a ‘dark star’ the mass of the Sun would be just a few miles in diameter, which matches the modern calculations for the size of a solar-mass black hole. -
Pierre-Simon laplace idea of dark stars
Pierre-Simon Laplace discovered the concept of 'dark stars. He posits that the 'largest luminous bodies in the Universe may be invisible.' After a new discovery about the properties of light, however, the concept is abandoned. -
Albert Einstein therory expanded
Albert Einstein expanded his theory to include the effects of gravity. His equations show that gravity is a ‘warp’ in spacetime caused by matter. Known as General Relativity, it provides the theoretical basis for black holes. -
Karl Schwarzschild's theroy
Karl Schwarzschild crafts a solution that includes a startling finding.Enough matter packed into a small-enough space would have such a powerful gravitational field that nothing could escape from it, including light. This describes what a dark star does. -
Suahmanyan Chandrasekhar ideas
Indian astronomer ,Suahmanyan Chandrasekhar defies conventional wisdom by showing that stars that weigh more are in a more exotic state then stars like the sun. This includes the "dark stars". -
collapse of the heavy star conclusion
Theman who would lead the effort to develop the atomic bomb concluded the inevitable fate of a heavy star is to collapse, cutting it off from the outside universe. -
black hole drain
Roy Kerr shows that massive stars will ‘drag’ the spacetime around them like water swirling around a drain. Others soon realize that Kerr’s equations apply only to black holes. -
Quasar discovery
Maarten Schmidt discovered a quasar, is one of the most powerful objects in the universe. His finding leads to the realization that it and all quasars are powered by a supermassive black hole at the center of a galaxy. -
The name "Black Hole" is invinted
John Wheeler brings the concept of "collapsed stars" by coming up with a new name for them being "black holes". -
Helpful Inventions
With new inventions coming up,by combining X-ray, radio, and optical observations from telescopes in space and on the ground, astronomers identify the first possible 'stellar-mass' black hole, Cygnus X-1. -
Are Black holes really black?
Stephen Hawking shows that black holes may not be black after all. They emit a form of radiation that will eventually cause them to evaporate. -
Discovery of rotation of Black Holes
Andy Fabian find evidence from redshifts of the innermost portions of accretion disks around supermassive black holes that the black holes are rotating -
How Black Holes are linked with the Galaxies
Astronomers discovered that the evolution of supermassive black holes in the hearts of galaxies appears to be linked to the evolution of the galaxies. The galaxies may help give birth to stars, or prevent the birth of others. -
Sagittarius..or supermassive Black Hole?
Max Planck gives evidence for the possibility that Sagittarius A is a supermassive black hole at the center of the Milky Way galaxy. -
New Discovery
A very likely candidate for a black hole was discovered about 50 million light-years from Earth. It is the youngest black hole scientists have found, being only 32 years old. -
More Picture Proof
First visual proof of existence of black-holes. Suvi Gezari's team publish images of a supermassive black hole 2.7 million light-years away swallowing a red giant.
