"The Eight" Planet Solar Systems
The 8-planet solar system is part of what inspired people to study mathematics.
Tycho was the last naked-eye astronomer. Kepler used his this data and studied it for 20 years to get his first, second, and third laws.
Lately gravitational singularities have been studied by mathematicians.
Two types of gravitational singularities: collision and non-collision.
Non-collision singularities have never been observed in the solar system. Have collision singularities ever been observed in the solar system?
Comet Shoemaker in 1994 is the first ever observed collisions.
It came scarily close to us in October and there are more and more coming close to the earth.
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