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Since Comets have tails after millions of years why wouldn't the comet it self dissipate into one large tail?
Wiki User
∙ 17y ago
It will eventually dissipate. Comets lose some of their mass every time they get near the sun. The more volatile components evaporate more quickly than the rocks, so over time the rate of outgassing goes down and eventually all you have is a bunch of dust and rocks flying in formation. The reason there are still comets around is that comets only rarely come near the sun. Mostly they orbit on the most remote fringes of the solar system, so cold that any molecule they happen to run into sticks to them. They don't have tails out there, they are just big dirty ice balls. Comets can only come near enough the sun to create a tail if their orbits get disturbed in a profound way, something that doesn't happen often. Once a comet starts orbiting near the sun it won't last long, at least on a cosmic time scale.
Wiki User
∙ 17y ago
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Why comets halley is an bad omen?
It isn't. Since the times of ancient Greece comets have been believed to be omens of catastrophes. There is no evidence to substantiate such claims. Comets can cause destruction when they collide with Earth. Halley's comet's orbit does not intersect Earth's, so there is no risk of collision.
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Most are unchanged since their formation in the solar nebula.Correct
How do comets catch fire?
Comets do not catch fire at all, since comets are generally regarded as "dirty snowballs" in space. Their light is caused by the interaction of water vapour and dust particles with the solar wind and no combustion is taking place.
What did people think of comets in the 1800's?
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What are comets and meteors made of?
Comets and meteors are made of rocks and boulders same as on earth. But since they are in space for a long time, they might have some differences, little differences.
What effects does the sun have on comets?
since the comet is made of ice, when it gets nearer to the sun it melts down because of the heat of the sun
Why comets halley is an bad omen?
It isn't. Since the times of ancient Greece comets have been believed to be omens of catastrophes. There is no evidence to substantiate such claims. Comets can cause destruction when they collide with Earth. Halley's comet's orbit does not intersect Earth's, so there is no risk of collision.
Who first discovered a comet?
Early Man first noticed comets. Comets were around long before humans.
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What do comets and asteroids have in common?
Most are unchanged since their formation in the solar nebula.Correct
How do comets catch fire?
Comets do not catch fire at all, since comets are generally regarded as "dirty snowballs" in space. Their light is caused by the interaction of water vapour and dust particles with the solar wind and no combustion is taking place.
What small item designed to hold things together was invented in 1858 and has since sold millions and millions?
paperclips
