How many known planets are in the universe? How many do astronomers estimate there to be?
1 Answer
Feb 10, 2017
3584
Explanation:
There is a catalog of extrasolar planets that is kept fairly up to date.
The current listing is 3576 extrasolar planets, and with 8 planets in our solar system makes 3584.
Given the number of stars in the universe there could easily be trillions of planets.
