It is very likely that a comet has hit the earth in the distant past. It is possible that a comet striking the earth led to the extinction of the dinosaur.
Probably several times. It is assumed that a third of Earth water came from comets and it was a comet that hit the Earth 65 million years ago and caused the dinosaur extinction.
as far as i am aware it is haley's comet
yes
"Periodic" comets reappear at predictable intervals, such as Haley's Comet. Some comets are never seen again. A few crash into the Sun and are destroyed; a few crash into other planets, such as the Shoemaker-Levy comet that hit Jupiter. Many comets have such long periods, in terms of thousands of years, that no records exist that anyone ever saw them before.
Close to 100%, if you wait long enough.
yea and we will die
I don't think so
Yes. The surface of Mars is littered with craters from such impacts. In fact, every planet in the solar system has been hit by a comet... not just once, but many, many times!
We don't currently know when a comet will hit planet Earth.
No, a comet will NOT hit earth in 2012.
Halley's Comet
Jupiter. Jupiter was hit in 1994 by a comet called Shoemaker Levy9.
Comet Lulin will not hit the Earth; it won't even come especially close.
Probably several times. It is assumed that a third of Earth water came from comets and it was a comet that hit the Earth 65 million years ago and caused the dinosaur extinction.
we cant survive a comet and besides they dont hit the earth
as far as i am aware it is haley's comet
yes