"An atom differs from the solar system by the fact that it is not gravitation that makes the electrons go round the nucleus, but electricity." -- Bertrand Russell, physicst, 1924
It has recently been claimed that there is proof of stars orbiting a black hole at the center of our galaxy. However, gravity predicts that stars are sucked into black holes not that they orbit them regularly: Unprecedented 16-year-long Study Tracks Stars Orbiting Milky Way Black Hole.
ScienceDaily (Dec. 10, 2008) — By watching the motions of 28 stars orbiting the Milky Way's most central region with admirable patience and amazing precision, astronomers have been able to study the supermassive black hole lurking there. It is known as "Sagittarius A*" (pronounced "Sagittarius A star"). The new research marks the first time that the orbits of so many of these central stars have been calculated precisely and reveals information about the enigmatic formation of these stars — and about the black hole to which they are bound."The essential result of this investigation is a clear understanding as to why the 'Schwarzschild singularities' do not exist in physical reality. … The 'Schwarzschild singularity' does not appear for the reason that matter cannot be concentrated arbitrarily. And this is due to the fact that otherwise the constituting particles would reach the velocity of light. This investigation arose out of discussions [with Robertson and Bargmann] on the mathematical and physical significance of the Schwarzschild singularity. The problem quite naturally leads to the question, answered by this paper in the negative, as to whether physical models are capable of exhibiting such a singularity." -- Albert Einstein, mathematician, 1939
"Even mainstream scientists admit that at singularities the ‘laws of physics’ break down. It would be more accurate to say that their own theories break down." -- David Pratt, natural philosopher, 2005