It doesn't "enter" the atmosphere, it comes from the large mass of the earth which creates a gravitational pull.
Gravity. And the meteor is on a path that intersects the orbit of the Earth.
Earth: Space: - is a planet - No gravity - supports life - Vaccum - gravity - No gravity or atmosphere - atmosphere
Gravity causes the atmosphere to stay here on Earth, where there is a huge demand for it.
The atmosphere is held in place by Earth's gravity. Gravity keeps the gases of the atmosphere from drifting off into space and creates a force that pulls them towards the planet's surface. Without gravity, the atmosphere would dissipate into space.
The force of gravity binds the hydrosphere and lower atmosphere to earth.
The Earth's gravity.
The force that holds the atmosphere to the Earth is gravity. Gravity is the force of attraction between all objects and it keeps the gases in our atmosphere close to the Earth's surface.
gravity
The Moon has almost no atmosphere, so that is unable to influence lunar gravity - which is about one sixth of Earth's gravity.
Yes, water vapors enter in the atmosphere.
The earths gravity. The more mass a body has, the more gravity, The Earth has enough mass to hold an atmosphere. The Moon, on the other hand, is not massive enough, and so does not have a high enough gravity, which prevents it from holding an atmosphere.
There is no atmosphere on the moon. There is insufficient gravity to keep an atmosphere there.