Why does a comets tail point away from the sun?

Answer

The tail of a comet is made up of gas and tiny particles that are carried away from the sun by the solar wind. Comets are formed mostly from ice and dust, and their tails only form when they are close enough to be melted by heat from the sun.

As the nucleus of a comet begins to melt, it forms a cloud of gas and small particles known as the coma. When comets travel close enough into the center of our solar system, pressure from sunlight causes the coma to form a tail that stretches away from the sun.

Q&A Related to "Why does a comets tail point away from the sun..."
If a big, dusty projectile was zooming through Earth's atmosphere, we'd always see its tail trailing behind it. This makes sense; as the projectile is buffeted by the air, it leaves
http://www.quora.com/Comets/Why-does-the-tail-of-a...
Comets have two tails. One is a dust tail that follows behind the comet, where the comet has physically been. The other tail is an ion tail that is blown away by the solar wind, so
http://wiki.answers.com/Q/Why_does_the_comet_tail_...
The tails of comets are in all cases directed away from
http://www.chacha.com/question/why-does-the-tail-o...
Comets actually have two tails- the spectacular bright tail is mostly vaporized gas that points (is blown) straight away from the Sun, is caused by charged particles and photons flowing
http://answers.yahoo.com/question/index?qid=200608...
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Comet Kohoutek was discovered by Lubos Kohoutek in March 1973 while viewing asteroid images at the Hamburg Observatory. The tail of a comet generally points away ...
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