air resistance
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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.
To be able to escape earth's atmosphere you need to achieve a velocity that is great enough to achieve sufficient energy to escape the earth's gravitational field strength.
This was called Sputnik 1 (Russian for satellite 1). It went into orbit on 4th October 1957 and lasted for 22 days before its orbit decayed enough for it to re-enter the atmosphere.
We call the fireball caused by friction and compressive heating a "meteor" as it passes through the atmosphere. The fragments that last long enough to strike the ground are called "meteorites".
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Friction.The Earth's atmosphere never really ends, it just gets thinner and thinner until it seamlessly merges into the solar atmosphere. Satellites in low Earth orbit experience enough drag that they can slow down, which results in them dropping nearer to Earth, where they experience even more drag.
No. Actually, if there is any interference, it's just the opposite.Just like any other artificial satellite, if the Hubble were to drop low enough to encounterany appreciable atmosphere, it would soon fall out of orbit, re-enter the atmosphere, andburn up because of atmospheric friction. For that reason, it has to be kept high enough toavoid virtually all of 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.
carbon dioxide, methane, and water vapor.
Scientist theorize that bacteria with chlorophyll in them slowly but surely began to multiply. And as they did, they photosynthesized enough to create an entire atmosphere. (as you know oxygen is a byproduct of photosynthesis)
To be able to escape earth's atmosphere you need to achieve a velocity that is great enough to achieve sufficient energy to escape the earth's gravitational field strength.
The air molecules spreds out in space so there is not enough air to breathe for us there
The air molecules spreds out in space so there is not enough air to breathe for us there
If the moon "had" or had had in the past an atmosphere, its gravitational force (about one sixth that of earths) would not have been strong enough for it to stop the gases dissipating into space.
This was called Sputnik 1 (Russian for satellite 1). It went into orbit on 4th October 1957 and lasted for 22 days before its orbit decayed enough for it to re-enter the atmosphere.
in order for it to never come down, it would have to leave earths atmosphere. this would be impossible for a human to do because they could not produce enough force for it to do that.