If a comet hits the ground than the gravity will be greater or lesser?
It may, or it may not. There is no particular reason to assume that a comet will crash into Earth precisely in 2012.
Unless the comet actually hits the Earth, there would be no effect whatsoever.
No. It is over 55 million miles from Earth when it gets to its closest so there is no chance of it hitting us.
there is not actually not a harmful effect on a comet it just gets dark.just don,t look at it or if you do you will get blinded so if you do go to the docters and see what they can do if the docters cant help your jus blinded forever.chi ching$$
Very little, actually. A comet has essentially no effect on the Earth, unless it actually HITS the Earth. When that happens, the effect will depend on the mass of the comet, but we do believe that this was probably what killed off the dinosaurs - and most other large animals on Earth - 65 million years ago. It HAS happened before, with catastrophic effect. It WILL happen again - if we're not ready to prevent it.
The sun is the largest out of the three and then the earth and then a comet.
All the way from forming the moon to pretty lights in the sky.
comet sandy
There is no record of a comet directly hitting Earth in recorded history. Comets are typically small icy bodies that mostly burn up upon entering the Earth's atmosphere due to friction with the air. However, they can cause spectacular meteor showers when their debris interacts with Earth's atmosphere.
The name of the comet that will pass Earth on August 15, 2011, is the comet Honda.
We don't currently know when a comet will hit planet Earth.
There is no relationship whatsoever between Earth's moon and any comet.