The topmost layer of the atmosphere is called the exosphere, which literally means outside sphere. Not only is the exosphere the outer layer of the Earth's atmosphere, but it's also by far the ...

The Mesosphere is the layer where meteors burn up, and it extends from about 50 km to 80 km (31-50 miles) ...

A constant rain of tiny meteorites kicks up dust on the moon and helps generate the thin layer of atoms that form its exosphere. The moon doesn't have an atmosphere like the one that shields Earth ...

It has pockets of water ice trapped on its surface, caves in which astronauts might one day live, and even an incredibly tenuous atmosphere known as an exosphere. That thin layer of atoms, which ...

Astronomers have for decades been aware of the delicate atmosphere surrounding the moon that is so thin and fragile that it's better referred to as an exosphere. And while scientists have long ...