The moon and the sun are not planets. Earth and other planets in our solar system orbit around the sun, Sol, and the moon, Luna, orbits Earth.
There are other objects, besides the sun and moon, in our solar system because, in the process of star formation, there are almost always (and were, in our case) large clouds of hot gas and dust left over. These accumulated into objects, which in turn accumulated into larger and larger objects, which became planets, asteroids, moons, and comets.
Yes, I can. -- Complete list of planets that humans have visited: Earth -- Complete list of other bodies outside of earth that humans have visited: The Moon.
You can walk on any of the inner planets. The outer planets (Jupiter, Saturn, Uranus, Neptune) you cannot walk on; they are made entirely of gas. This is only a guess, but Pluto is probably solid enough to walk on.
moon don't have atmosphere, plants and water.
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.
They are in a line with Earth in the middle.
No, there are not currently any known forms of life on Earth's moon (or any other moons).
mars venus
Earth Venus and Mercury have no moons, all others have at least one.
The Earth is bigger in size. The Earth is a planet. The Moon has no plants. The Moon has less gravity.
Yes, I can. -- Complete list of planets that humans have visited: Earth -- Complete list of other bodies outside of earth that humans have visited: The Moon.
1). Halley's Comet 2). Earth's moon
Several thousand artificial satellites - and quite a lot of space debris.
to study it and they would see if there is life on other plants not just earth
Besides Earth, yes.
The moon is the only place man has set foot on.
They have no plants or animals
The ones on earth, because there are no plants in outer space, and none on the moon that have been discovered yet.