Not at all. A comet is a very dirty ice ball, so dirty it is blacker than graphite. That's all.
Not directly, but as a comet approaches the sun, which is one big fusion reactor, the heat will cause the surface of the comet to vaporize, forming the comet's tail.
No
It is not exactly a sphere, the longest axis is 15km and the shortest one is 8km.
No. The only way a comet could cause a catastrophe would be if it collided with Earth. The orbit of Halley's Comet keeps it at a safe distance from us.
Would the impact of a comet on the Earth cause earthquakes? Possibly; it would depend on where the comet hit. But depending on the size of the comet that struck the Earth, the results might vary from "merely" very terrible indeed to absolutely catastrophic; The impact, the fallout, the tsunami (if a water strike) and/or the "nuclear winter" darkening of the skies with dust and debris would dwarf most conceivable earthquakes. Let me put it this way; if a large comet strikes the Earth, the last thing people will be worrying about would be an earthquake.
cause it gets to close to the sun
When a comet nears the sun, and begins to out-gas, solar wind pushes the particles away. as the comet nears the sun, more & more particles are emitted, and the tail grows.
Global epidemic, the sun exploding, collosion with a black hole, global warming, global cooling, nuclear war, eruption of a super volcano, or a collision with a large enough meteorite or comet.
our earth would be then fried, becasue the orbit of a comet orbits around the sun which cause the comet to be insanely high. which in one case would fry our earth if our orbit was near the sun
No cause he only a dog named PLuto
The tail of a comet always points away from the Sun, no matter which direction the comet is moving. This is because the Sun heats the comet up and blasts away the 'dirty ice' it's composed of, creating a tail that streams away from the Sun.This means that a comet can actually be travelling such that it's tail is ahead of it.
a comet/meteorite