They have different lenghts because of their age!!! :) love marina & paige
If you mean why is a year shorter or longer on other planets, a year is generally defined as the length of time that it takes a planet to make one full orbit around the Sun. Each planet moves at a different rate and is a different distance from our sun, therefore the amount of time differs.
They all have days and years, but they are all of different lengths to days and years on Earth.
Different planets have different times to orbit the Sun. Mercury takes 88 days. Uranus takes 84 Earth years.
its not different at all they are just outer planets
no theres not in my opinion because it has to do with the positioning of the sun. If they do it is very different
No, usually the planets are in different directions. Every few years two or three of them line up.
Different planets have different strengths of gravity.
most planets look different from different minerals in soil different particles in the atmosphere
Planets circle the sun Moons cirle planets.
the found different rock on the planets
No. All planets are spherical.
Because as they revolve in their orbits around the sun, every planet averages a different distance from the sun, and that's how gravity works.
the outer planets are gaseous and the inner planets are not