newton searched high and low with his telescope
Gravitational forces as described by Newton's Universal Law of Gravitation. Also important is the inertia of the planets and Newton's First Law of Motion is involved there.
1. Isaac Newton's discoveries about light and movement of planets were used to make the first flights to the moon possible.
None of the planets ever cared whether Newton was even alive. To them, he had no significance or influence whatsoever. But he did write the first formula for the force of gravity, and it explained almost exactly why the planets move the way they do.
ANSWER Sir Isak Newton was the first person to realise that the force of gravity was universal. It is Kepler motion that describes the elliptically orbits of the planets.
If no force, the planets would move in a straight line, not in a orbit around the sun.
It was actually Johannes Kepler who discovered that planets follow elliptical orbits in the early 17th century. Newton later built upon Kepler's work by formulating the law of universal gravitation, explaining the underlying force responsible for the motion of planets.
I believe that would be Galileo (sp?) However I'm pretty sure Kepler is the one that proved it.
According to the Newton's first law of motion,each body continues it's motion until a force is exerted.In the outer space there might be no force in the opposite direction which is capable to make the planets stationery even after the BIG BANG THEORY.
The path of all bodies that orbit due to gravity is an ellipse. This was first proved by Isaac Newton in his most famous work, the Philosophiæ Naturalis Principia Mathematica.
Born Isaac Newton, later to become Sir Isaac Newton.
Kepler's first law of planetary motion published in 1618 says that the planets travel in elliptical orbits with the Sun at one focus. Newton's law of gravity and other work he did explains how the Sun's gravity produces ellpitical orbits.
Force is zero in Newton's First law.