How many planet in universe?

Answer 1

No one knows !!!

However, there are nine(9) planets in the Solar System. The Solar System is a very small part of a much larger galaxy, known as the ' Milky Way '. The number of stars(Suns) that form the Milky Way is only estimated. Those suns may have any number of planets around them!!! .

The universe is composed of trillions??? of galaxies, each with an unknown number of stars. Compounding this, each star may have any number of planets. So it is impossible even to estimate the number of planets.

All the galaxies form the known part of the universe.

Answer 2

We have no way of knowing how many, although we do now know that there are other star systems with planets, or notable "accretion discs" (from which planets will form). It is a very difficult area to explore because planets, even very big planets, are a fraction of the size of the stars they surround, and the stars themselves are difficult enough to see. As far as "how many in the universe?" undoubtedly a large amount, but we have absolutely no idea how many that might be.

Answer 3

It is currently estimated that there are around 100 billion planets in our galaxy, the Milky Way. There are billions of other galaxies in the universe, so the total number of planets in the universe is likely to be trillions or even more.