Issac Newton shortly after discovering the gravity theory
went* Galileo
planets
Ptolemy thought the earth was the center of the universe, so that the stars, the other planets and the sun revolved around the earth; Copernicus realized that for the orbits of the planets to make sense, the earth and the other planets had to revolve around the sun.
orbit. The force of gravity from the sun holds the planets in their orbits, while the planets' velocity and inertia keep them moving in a curved path around the sun. This balance between gravity and inertia allows the planets to move in stable orbits.
The planets revolve around the sun because of its gravitational pull. This is called a planet's orbit. The question seems a bit mixed up, but the answer seems to be correct. That's not a bad answer, but it's not exactly right. In fact everything revolves around the "centre of mass" of the Solar system, which is located just outside the Sun. I hope this doesn't confuse you.
went* Galileo
Because the sun moves around so when the sun moves around the light from the sun touches the planets
The sun moves in straight line and the planets move around it in spiral way
The planets are considered moving around the sun, even though the sun moves too (in tiny circles opposite the planets' motions). The planets are circling the sun. The sun (dragging the planets along with it) is circling our galaxy's center. Our galaxy (dragging the sun, the planets, and all the other stars) is moving through the universe as well.
planets and comets and asteroids
planets
The path where a planet moves around the sun is called an orbit.
Ptolemy thought the earth was the center of the universe, so that the stars, the other planets and the sun revolved around the earth; Copernicus realized that for the orbits of the planets to make sense, the earth and the other planets had to revolve around the sun.
How far is the earth to the sun?
Here is one: You can observe that the position of the Sun amongst the stars changes. So either the entire sky with all the stars moves around us, the Sun moves around the Earth, or the Earth moves around the Sun. Assuming that it is Earth that moves around the Sun is the simplest of the assumptions (in the older, geocentric, model, the other planets had complicated orbits around the Earth).
Each planet moves in its own elliptical orbit round the Sun, then and now.
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.