It was Nicolas Copernicus in 1543 is the person you are searching for. This idea of Heliocentric model was not his. The original idea was put forth by Aristarchus of Samoa (island off Turkey) around 200 B.C.E. Aristotle shot down that theory, but that's another story.
most of them have their moons revolving them.
solar system
Yes. A moon (or natural satellite) do revolve around other planets besides Earth. The only two planets without moons revolving around them are Mercury and Venus.
The gravitational force exerted on the planets by the Sun keeps them in place and out of a collision course.
It could happen in 21, December 2012.
Geocentric motion of planet is that in which earth is at the centre of the universe and all other planets revolving around it.Heliocentric motion of planets is that in which sun is the of universe and other planets revolving around it.In planetary motion all the planets includes Earth revolving around the Sun in their fixed orbit.
most of them have their moons revolving them.
Planets
solar system
All the planets revolve around the Sun.
Planets
They rotate. Travel around the sun is called revolving.
The moon is Earth's satillite, revolving around earth eternally.
He discovered that the planets revolved around the sun instead of the planets & the sun revolving around Earth.
Yes. A moon (or natural satellite) do revolve around other planets besides Earth. The only two planets without moons revolving around them are Mercury and Venus.
The gravitational force exerted on the planets by the Sun keeps them in place and out of a collision course.
The syllable "geo-" always has something to do with the earth. The "geo-" "-centric" model has the earth at the center, and the planets revolving around the earth.