Why the path of planets is elliptical not circular?
Why do planets revolve in elliptical orbits?
Does the radius of elliptical orbit of planets, or satellites decrease with time? Why don't planets have phases like the moon? Why does Uranus not orbit anticlockwise like the rest of the planets? Why does the earth revolve around the sun clockwise and counterclockwise around itself? Do all planets have to orbit a star? Why is the orbital period of a satellite independent of its mass? Does a planetary orbit depend on the sun? How close can two or more Earth sized planets orbiting a small star come before they adversely affect each others’ orbits? Do all planets rotate east to west? Does moon revolve around its own axis? Why don't planetary orbits violate the law of conservation of energy? Where does the kinetic energy Come from? Will there be change in gravity and time dilation if the masses of all our planets are considered to be the same? What is the case when angular velocities are also considered the same? Why are the shapes of planets and stars spherical? Why aren't they square or any other shape? What is the point of all the other planets? Can two planets repel each other due to their magnetic fields or vice versa? Is there an equation which can calculate the gravity of the planets and their moons in our solar system simultaneously? Has there ever been a conflict of orbital paths between two satellites that were going to crash into each other? Why doesn't Jupiter orbit the sun? Can a planet have an orbit shaped like a figure 8? Why does the moon revolve around the sun? How do satellites stay in orbits and avoid each other? How do Kepler's Law state gravitation? Will the eight planets in our solar system ever be aligned? What's the point of existence of other planets? What if the earth begin to rotate in the opposite direction of its orbit? RE Polaris: Is it possible that an out of view planet’s orbit is in a gravitational suspension between Suns due to a multiple pull of gravity effect? Could a planet orbit two suns in a figure 8 pattern? Does the Milky Way orbit around anything? If so, what's its orbital period? What happens when the Earth stops rotating in its orbit? How can you explain Uranus's tilted orbit using Einstein's view of gravity?