Observatory.
Yes they are the sun has gravity that holds the planets in place.
Gravity keeps the planets together
Of the known planets that scientists have discovered, no, there is not a planet that is hotter than the sun.
By the gravity of the sun.
gravity
Scientists hypothesize that the sun and planets formed from a giant molecular cloud of gas and dust in a process called accretion. They believe the sun formed at the center and the planets accreted from the disk of material surrounding it. This is known as the nebular hypothesis.
Uranus is the seventh planet from the sun.
The sun is the center of the Milky Way. Earth was thought to be the center, but with modern equipment, scientists figured out that the sun is the middle.
ummm there were nine planets but scientists decided that Pluto was a dwarf planet so i don't think it counts anymore
Aristarchus found out the planets revolved around the sun, not he sun revolved around Earth.
Gravity
Gravity, inertia, and gravitational force.