Gravity and inertia.
elliptical
elliptical
During the creation of the planets, gravitational forces pulled the heavier planets towards the center. The lighter gas filled planets by default established further orbits. It is thought that heat caused the inner planets to lose their gas composition.
Of the major planets, Neptune. The speed of planets in their orbits is directly related to their distance from the sun. The farther a planet is from the Sun, the slower its orbital speed.
all orbit according to the sun's gravity- if there was none they would all move in a pretty straight line instead of an orbit Answer: All planets follow eliptical orbits around the sun, and all move in the same direction around the sun.
newton
Isaac Newton
Newton
The forces of gravity between two masses are the cause of all orbits.
Elliptical orbits of the planets around the sun actually match what we observe. Newton's Theory of Universal Gravitation states that planets will move around the sun in elliptical orbits.
Isaac Newton used a refracting telescope and calculus, which he invented to map the orbits.
true
I think it was gallilao or Issac newton
sir Issac newton
A: Issac Newton
Newton discovered this with his Universal Theory of Gravity.
gravity