I assume you mean "Meteor" and "Meteorites"
A meteor or comet
No. If a comet were to strike the Earth, the results would probably be catastrophic.
A comet has no atmosphere.
the Halley's comet does not have atmosphere
It cannot escape the laws of physics, entry into the earths atmosphere will cause it to burn. But once a comet enters the earths atmosphere, it is no longer a comet but becomes a meteoroid blazing across the sky as a meteor. If it makes it makes it to Earth, it then becomes a meteorite.
Biela's comet
In 1994, comet Shoemaker-Levy collided with Jupiter. Much of the comet broke up in the atmosphere. The comet left visible scars on Jupiter for many months.
Comet Shoemaker-Levy 9 collided with Jupiter in July 1994 and was completely disintegrated during the impact. There are no remnants of the comet remaining, as it broke apart and its fragments were absorbed by Jupiter's atmosphere.
nes
how do geologists think earths atmosphere is formed
Comets do not have atmospheres in the same way that planets do. Instead, they have a thin envelope of gas and dust, called a coma, that forms as the comet gets closer to the Sun and begins to heat up. This coma can extend hundreds of thousands of kilometers from the comet's nucleus.
comet