An atmosphere
atmosphere
saturn
An atmosphere
An atmosphere.
The atmosphere. This can be broken down further into layers.
An outer layer of gas on a planet is called an atmosphere.
The outer layer is atmosphere.
atmosphere
saturn
An atmosphere
saturn
saturn
An atmosphere.
The atmosphere. This can be broken down further into layers.
The outer layer of gas around the terrestrial or rocky planets is called the atmosphere, although Mercury's is so sparse that it is referred to an an exosphere (as if space began at its surface).
The gas surrounding any planet is called its atmosphere.
The atmosphere is an outer layer of gas on a terrestrial planet. A hole in the ground caused by a meteor hitting a planet is a crater.