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What percent of planets are smaller than earth?
37.5% not including PlutoFirst Answer:50% including Pluto.Second Answer:Of the eight planets in our solar system, three are smaller than earth. 3/8 = 38%.However, we also know (to date) of more than a thousand other planets, orbiting distant stars. None of these planets so far is smaller than earth, but that it because planets as tiny as ours are difficult to detect. We expect probably half of all planets would be our size or smaller.
Is our sun the only star that has planets orbiting around it?
No. Other stars have been found to have planets orbiting them.
Who believed that forces keep moons orbiting planets and planets orbiting the sun?
Isaac Newton stated that the universal law of gravitation keeps moons orbiting planets and planets orbiting the sun. This law describes how every mass attracts every other mass in the universe with a force proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Does the sun have a moon?
The sun has 8 or 9 major planets and thousands of smaller objects orbiting around it. Some of the planets have many moons. (eg Neptune has 13) It can have moons but so far all of the moons are to close to the planets to get caught in the sun's orbit.
Are all stars and planets are about the same age?
All of the planets are in the same atmosphere. All of the planets are unique. All of the planets are considered planets. All of the planets have moons. All of the planets are named after a mythical person or thing.
