How many planets do scientist estimate are out there?
International Astronomical Union decided that Pluto is no longer a planet, so there are now only 8 planets in the Solar System.
Answered by Neil S. -Galleries
About Solar system
The Solar system refers to the 8 planets, hundreds of moons, and billions of asteroids and comets other celestial bodies orbiting the star Sol. Sol is the name of our sun.
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