The most 'popular' and famous comet is probably Halley's.
You can see that one every 74 to 76 years.
the bear
halleys comet
Halley's Comet is still orbiting the Sun. It was close to Earth in 1986.
Actual collisions are pretty rare. Most 'space debris' burns up in the atmosphere long before it hits the planet.
The most famous regularly returning comet is named Halley's comet. It nears the Sun every 74 years. Last seen in 1986.
I would expect that the most rapid changes to the Earth's surface would result from the impact of a comet striking the Earth.
assteroids
A comet is an icy body that releases gas or dust. Most of the comets that can be seen from Earth travel around the sun in long, oval orbits.
the most popular thing on earth is a Jackson everybody has one
An asteroid, because the orbits of the asteroids are nearer to the earth than the comets.
Comet McNaught is the most massive comet discovered to date. It is just under 15 miles in diameter. The tail is extremely long as well. Approx 2.5 earth-mars distances. Hope this helps.
No. There is no comet or asteroid or meteor going to hit the Earth. Most of it is superstition.