There were 9 planets but now there is only 8 planets
Since the downgrading of Pluto from a planet to a mis-positioned Asteroid (It's not in the Asteroid belt) there are considered only to be 8 planets. Lowell, in the 19th century, postulated the existence of another gas giant way out beyond Pluto (it was the search for this superplanet that resulted in the discovery of Pluto). Some astronomers believe, based upon gravitational "disturbances", that such a planet might exist.
There are 8 planets.
There are 8 Planets
There are 8 planets
8 Planets
8
There used to be 9 planets but now there are 8 planets
8 known planets.