Comets

Some races have an average height which is shorter than others. But there are always exceptions. The tallest man currently registered with Gunniess World Records is Chinese. However he has allegedly been overtaken by a Ukrainian who is still growing.

Any size is possible, though most of them are "small", at least compared to things like planets. Halley's Comet, for example, is about 15x8x8 km, which is quite large on a human scale ... most mountains aren't that big ... but still small compared to Earth itself or even the Moon.

• Asteroids and meteors are made up of rocks or ice.
• All cannot be seen without a telescope (Only comet has exception to that whenever it's orbit comes close to Earth such as Hailey's comet.

what would happen if a comet collided with our planet?

I can visualize it harming the atmosphere before it makes its crash,

perhaps that was the cause of extinction of life years ago,such thing may cause eruption of volcano that sends intense level of atoms in the ozone layer and stop the penetration of sun rays,as a consequence, temperature drop down ,rains will be more repeated that the level of the sea would rise,an other effect of such collision is earthquake that could eradicate ail forms of existence all these are enough reasons for scientists to search more and more how to escape such a tragedy

The superstitious belief about comets are that they bring bad luck. Others superstitious beliefs are that comets are attacks that are brought on by the heavens.

"Down" is the direction of the greatest mass, which, in the Solar System, is the Sun. The reason ALL comets haven't fallen into the Sun is that there also have angular momentum, which results in them falling AROUND the Sun.

There is no such thing as asteroid showers, perhaps you mean meteor showers.

Comets are made of ice, rock, cosmic dust, ammonia, carbon dioxide, methane ice and water. Density will vary depending on it's exact composition. Being that its primary component is water ice, it's specific density will be very close to 1. That is a comet is likely just less dense than water. A large comet if landed softly in the ocean would probably float.

We generally believe that comets with orbits of 200 years or less, traveling in the ecliptic plane, come from the Kuiper Belt. Those comets with longer orbits, or that travel at angles to the ecliptic plane, come from the Oort Cloud.

The Hale-Bopp comet is relatively rare - it only passes close to the Earth once every 76 years.

In the last pass, there were several groups that felt there were supernatural or mystical properties of the comet. Some of these groups were covered by the media, although I don't believe anything horrible happened.

A 1951 recording on Holiday Records entitled Rocket 88 - a version of the rhythm and blues song by Jackie Brentson converted into rock and roll by way of the addition of a country music arrangement - is considered Haley's (and the world's) first true rock and roll record. However a recently discovered 1950 recording entitled Teardrops From My Eyes reveals Haley was already taking rhythm and blues songs and adding country western arrangements a year earlier than Rocket 88.

yes. While one would presume that the tail would stretch out behind the comet, in reality the tail is caused by the solar wind blowing dust and gas away from the sun. Thus, no matter what orbit the comet is in or what direction it is travelling, the tail always points away from the sun.

Comets are icy bodies that release gas and dust as they orbit the Sun, forming a tail. They often have highly elliptical orbits that can take them far from the Sun. Meteors, on the other hand, are small rocky or metallic debris that enter Earth's atmosphere and burn up, creating streaks of light in the sky.

Halley's Comet was a periodic comet; it returns to the inner system every 76 years.

Hale-Bopp is a very long-period comet; it may have been last seen in 2215 BC. That may have been Hale-Bopp's first approach to the Sun; its orbit was likely altered by close brushes with Jupiter then, and again during its last pass in 1997. Hale-Bopp's next appearance may be in or around the year 4530 AD.

The name comet came from the Greek word komē meaning "hair of the head". Aristotle used this word to mean a luminous tail of a comet. Aristotle also used the derivation komētēs meaning "wearing long hair" to use as a noun meaning comet and to describe comets as "stars with hair". This Greek word was adopted as the Latin word comētēs and later comēta. Comēta is the earliest English forebear of the now "comet".

The comet west is estimated to be about 37 miles in diameter.

It is not exactly a sphere, the longest axis is 15km and the shortest one is 8km.

A comet is an icy small Solar System body that, when close enough to the Sun, displays a visible coma (a thin, fuzzy, temporary atmosphere) and sometimes also a tail. In the outer solar system, comets remain frozen and are extremely difficult or impossible to detect from Earth due to their small size. As a comet approaches the inner solar system, solar radiation causes the volatile materials within the comet to vaporize and stream out of the nucleus, carrying dust away with them. The streams of dust and gas thus released form a huge, extremely tenuous atmosphere around the comet called the coma, and the force exerted on the coma by the Sun's radiation pressure and solar wind cause an enormous tail to form, which points away from the sun. Thus, a tail of the coma was formed.

Hyakutake is a long-period comet. Before its most recent passage through the solar system, its orbital period was about 17,000 years, but the gravitational influence of the giant planets has increased this period to 102,070 years.

Comets are celestial objects that have tails and move around the sun. When a comet is moving toward the sun, its tail points toward the sun.

No. Comets tails always point away from the sun. I believe the are a result of the heat and solar winds projected out from the sun which strip material off from the comet as it travels through space.

The tail is actually moving away from the comet. The solar wind pushes the dust and ice particles away from the comet as it melts. The ice particles reflects the light from the sun allowing us to see the tail.

In fact, the comet's tail is never behind it. It is always to one side of its direction of travel.

A comet's tail is always pointed away from the Sun due to the solar wind. As the comet moves closer to the Sun, solar radiation and solar wind push the dust and gas away from the comet, creating the tail that appears to extend ahead of the comet in its orbit.