loads of them
yes, because some dwarf planets are only as big as comets, whereas planets themselves take up much more space.
Gravity is stronger on some planets because the planet's core is much more dense. Making it's gravitational pull stronger. Which is making gravity stronger. that is sortof true
Some planets have less gravity or more gravity.More gravity giving you more weight and less giving you less weight.
some scientist have an answer they say that Pluto is not an planet but a comet also they say there are eleven planets
Jovian means Jupiter-like - these planets are made of gas and are several times more massive than the Earth - like Jupiter.
More planets. A typical galaxy probably has billions of planets.
Astronomers has been going to some of the planets. The advanced telescope can observe the planets more closely. and the satellites has been agthering pictures and datat from the space.
All planets have gravity- Some more than Earth, some less. Other planets that are large enough do have air- but not made up of the same gasses as Earth.
There is no particular reason: some planets have more mass than others.
because the planets are bigger and catch the sattelites as they are moving by. the inner planets are smallet and have less gravity, therefore not getting as much to catch some of the heavier sattelites. they are also the last planets to try and get them
Large planets have more gravity than smaller ones
All planets have mass, but some have more than others.