I know they can line up,but not orbit the same.The line up is occurring 12/12/12.
In all probability, all the planets are about the same age. They formed around the same time as all of the other planets give or take a few million years.
All planets (in our solar system) have the same sun. All the planets rotate around the same sun that Earth rotates around.
Jupiter is the oldest planet in our solar system, forming around 4.5 billion years ago along with the rest of the planets. Its large size and location likely allowed it to form relatively quickly after the birth of the Sun.
"No"
They all originated around the same time relative to each other.
no they do not
They all have elliptical paths around the Sun.
They all have elliptical paths around the Sun.
revelution
Gravity
Ages
Here are a few commonalities.... They are all in direct orbit around the sun. They are all approximately spherical in shape. They were all formed around the same time. They all orbit the sun on a similar plane. They all orbit the sun in the same direction.