All the planets are very old since they formed at the same time - roughly 4.5 billion years ago.
10 +
There is very little light on the planet Jupiter. This planet is a gas planet and the storms on this planet have continued for over 300 years.
Your planet !!! Our Planet. The name "Earth" is about a 1000 years old and is an English/German name which means the ground. It comes from the Old English words 'eor(th)e' and 'ertha'.
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It is the hottest planet, and it is very rocky with many craters. It is terrestial and the closest to the sun and also the smallest planet.
it's very very new! I just got it for my xbox 360
Jupitar planet is very big.
There is no possible sugested name for an old planet.
Jupiter, Saturn and Uranus have MORE that 21 satellites.No planet has just 21 satellites - unless your are reading from a very old text book.
it is a very rocky planet
mars
if we didn't have an atmosphere during the day our planet would be very hot and during the night our planet would be very cold
it is very cold and it is very far away from the sun.
I think the planet you are thinking of is Mercury.
Because Pluto is very very very small and the smallest planet in our planetary system
Because of quantum mechanics, anything is possible. However, it is very, very, VERY unlikely that any planet will explode.
Mercury is the planet closest to the Sun.