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.
It takes roughly 75 years for Halley's comet to come by the earth. All comets orbit the sun, but they do not all originate from the same place, which accounts for their paths and how long their individual orbit takes.
Edmund Halley, the second Astronomer Royal, observed it and predicted it would come back 75 years later. It did come back, he was no longer alive, but it was named Halley's comet at that time.
Comets have their own orbits in our solar system around the sun. They don't come close to the earth.
It is seen once in every 70year it is android which passes close from earth
No, a comet will NOT hit earth in 2012.
Comet Lulin will not hit the Earth; it won't even come especially close.
The Comet's Come-Back - 1916 was released on: USA: 31 May 1916
Halley's comet didn't even come near Earth - just near enough to see it.Halley's comet didn't even come near Earth - just near enough to see it.Halley's comet didn't even come near Earth - just near enough to see it.Halley's comet didn't even come near Earth - just near enough to see it.
2062
comet
The next predicted perihelion of Halley's Comet is 28 July 2061
it is believed that the earth had no livingisms until a comet hit the earth with orgamisms on it.
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.
It takes 75 years
76 years
I assume you are asking about C/2009 P1? This comet is no threat to Earth as it doesn't come anywhere near Earth. Its closest approach to the sun is about 1 1/2 times the size of Earth's orbit.