This planet has craters in it and you cant have a life on it cause there is no room on it and it is to cold on it and it has trace gases (including krypton and methane among others)
it is the 2nd largest planet
a description of mars is 60% of mars is rocky and 40% of mars is a flat surface
a large lump of rock that is heading for a planet
An Icy, Rocky Core.
No. This description does not quite work becomes the moon is not a planet; it is a moon.
There is no planet which fits that description.
There are none that would fit that description.
There are none that would fit that description.
You might want to rephrase your question
That sounds like a description of Venus.
Neptune is the farthest planet from the sun. It is a gas giant with a distinctive blue coloration. It is the fourth largest planet in the solar system.
The dwarf planet Eris best fits this description, with a year about 561 years long.