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Comets

Parent Category: Planetary Science
Comets are small solar system bodies that orbit around the Sun. They have a tail (trail of light) when traveling in space.
  One tail is gas, and the other ice. The darker, colored tail is gas, and the white easy-to-see tail is ice.
Halley's comet appeared in 1910 and 1985 (about every 75 years).
 COMET HALE-BOPP,   COMET SWIFT-TUTTLE,   COMET HYAKUTAKE,   COMET HALLEY, and   COMET SHOEMAKER-LEVY 9 
A comet is an icy body that releases gas or dust. They are often  compared to dirty snowballs, though recent research has led some  scientists to call them snowy dirtballs. Comets contain dust, ice,  carbon dioxide, ammonia, methane and more. Astronomers think comets  are leftovers from the gas,...
I doubt that the earth will be destroied by a comet in 2010. The earth was suppose to end and get destroied back in 2001 but that never happened. What makes this time so different? I wouldn't worry about it.
A meteor is seen as it gets hot passing through the Earth's  atmosphere. An asteroid is a small body of frozen gasses rock and  debris left over the from the creation of the Solar System. There  are 100s of thousands of asteroids. If an asteroid enters the  Earth's atmosphere, it is called a...
Why is a comet named after Halley? The comet was named after English astronomer Edmond Halley who first worked out how often this particular comet appeared in our skies. Mr Halley read reports of bright comets and said it was the same comet coming back near the Earth every 70 years or so. He...
Almost 200 years for one orbit around the sun.
It is not just comets- all orbiting bodies speed up as they get closer to the object they are orbiting, as stated by Kepler's Second Law, because the gravity between the two objects gets stronger as they get closer together, as stated by Newton's Law of Universal Gravitation.
there's comet halley, comet hale-bop, comet borrelly, and Comet wild 2... that's all i can think now.
A comet is part of the solar system because they have there own orbits to the sun just like planets.
No. While mercury has undoubtedly been hit by asteroids and comets, it does not "have" any.
Yes you can see comets sometimes with your eyes only,IF its close enough to Earth. :3
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.
76.1 years it was last seen in 1986 it will next be seen in 2061
the event would be catastrophic.it would explode with the force pof 10000 nuclear weapons an would wipe out human sevilation
The outer Oort cloud. (The inner Oort cloud is believed to be  disk-shaped.)
Sometime in August of 2010
It should pass by Earth again in 2061.
nucleus, coma, and dust tail
Halley's Comet is undoubtedly the most famous, having been named after Edmund Halley who first studied comets and showed them to be an orbiting part of our solar system.
First flight: 29 July 1949.   Entered service: 2 May 1952.   Go here: http://en.wikipedia.org/wiki/De_Havilland_Comet
· One-tailed test looks at the probability that the sample mean was either "greater than", or "less than or equal to" · Two-tailed test, sees if two means are different from each other (ie from different populations), or from the same population and tries to establish "equal to" or "not equal to
well, there are over 5 comets that have crossed the lines to the earth's orbit to the sun. So the Haley's comet must have crossed the solar system a thousand times.
Yuji Hyakutake, from southern Japan, discovered the comet Hyakutake
For the people who think they are smarter than a fifth grader here is the answer the answer is 76 years
A comet is a type of object that orbits the Sun. "Halley's comet" is just one specific comet. A comet is a type of object that orbits the Sun. "Halley's comet" is just one specific comet. A comet is a type of object that orbits the Sun. "Halley's comet" is just one specific comet. A comet is a...
Comet cleaner is owned by Prestige Brands. It was originally owned  by Procter and Gamble, but was sold to Prestige Brands in 2001.  Proctor and Gamble still owns the rights in Europe, and the  industrial Comet cleaners.
yes there is water on comets. haha loosers.good job idiot, you spelled losers wrong.
A comet's ion tail consists of various glowing charged gases. Ion tails are narrow and bluish.
No, it's not a planet. It is a star. The Sun is a medium-sizedyellow star.
Comets come to the inner Solar System - i.e., close to Earth - all  the time.
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...
Comets are just very icy asteroids, they become comets when a large enough of a body of mass, i.e. jupiter or saturn. When this happens, the asteroid gets thrown into an extremely high elliptical orbit. They ideally have an orbit perpindicular to the ecliptic.
Goldfish of both sexes can be happily put together usually without any problems. During the breeding season male fish may chase the female but in general they are very peaceful.
it is a star made out of ice dust and gas.
It depends on the comet. You can see comets when they are making their swing around the sun, if they are large enough and if their orbital path brings them close enough to earth. Many small comets are not visible, and we cannot see any of them when they are far enough from the sun. Halley's is...
Superstitious beliefs about comets varies between different  cultures. The most common superstitions are; tragedy, success in  war, increase in fertility, impending judgment and a future  catastrophic event.
All rocks, trash, and other things that are flying in a no gravitational area are prone to flying straight. If the object is flying near/close to Earth's atmosphere, the atmosphere will inhale the item and suck it into the Earth, due to our planets gravity.Have you ever seen a shooting star? Those...
It is not fact, but Pluto cannot possibly be a planet; it is too small. Even if it does have Charon (moon), It is not big enough to be a planet (my opinion). Also, its orbit is elliptical, and comes closer to the Sun, intercepting and passing through Neptune's orbit. As many people know, all of the...
Comets come in all shapes and sizes. There is no one size.
because it is burning
Far out in space, the comets tail is short. As it approaches the Sun, the heat melts away some of the ice covering the surface. As it evaporates into space, a tail is formed behind the comet. Always, the tail is facing away from the sun. This is why, when we see comets, their tails are almost as...
when you saw a comets it might be the ''END OF THE WORLD''.
Anything "can" turn into a black hole, as long as it is massive enough and dense enough. For example, Earth can turn into a black hole if all its mass is squeezed into a point about a centimeter in radius. The only reason that we don't see this happening is because you can't just make Earth denser...
Halley's nucleus is relatively small; barely 15 kilometres long, 8 kilometres wide and perhaps 8 kilometres thick. Its shape vaguely resembles that of an unshelled peanut. Its mass is relatively low; roughly 2.2 × 1014 kg, and its average density is about 0.6 g/cm3, indicating that it is made of...
It is impossible to write on Hally's Comet. It is moving much to quickly and it is very far away. It is better to write a short note on paper.
If the atmosphere does not burn it up then it will hit with the force left over. Most of the time it will leave a crater in the surface of the ground or it will displace a large amount of water if it lands in a body of water. Depending on the size of the comet and the life around it will determine...
Any "beautiful effect" attributed to comets and meteors is simply the startlingly beautiful effect of observing a substantial meteor shower or plainly visible comet. For most people, experiencing a meteor shower or seeing a comet is an unusual and beautiful event.
itjust randomlly comes.
Comets only develop tails when approaching a star which, in the case of our solar system, means the sun. As they approach the sun, they warm up and frozen parts of the comet (for example water / ice) begin to vaporize, leaving behind the vapor trail that we see as the tail.
Comets are bodies are made mostly frozen liquid and gases. Asteroids are made of stone and metal, meteor are asteroids which enter earth's hemisphere.
Does it?2nd Answer:Of course comets tails point away from the Sun!!!The "tail" is made of varying sizes of ice particles and chunks. The solar wind (a faint outstreaming of solar material) pushes comets' tails out, away from the sun.
Comets are flying bits of rock that don't enter the earth's  atmosphere and meteors are flying bits of iron stone or stony iron.  Also meteors do enter the earth's atmosphere.
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...
No. Comets are tiny compared to the Sun. They orbit the Sun, so they are in the influence of the Sun's gravity, because it is much bigger than them and everything else in the Solar System.
Collisions between large objects
Some scientists, notably Sir Fred Hoyle, believed that comets were a substantial source of water for the Earth. It's even possible that life itself came from space as microscopic spores or bacteria.
  Chinese astronomers noted the regular cycles of Halley's comet in the years following its appearance in 239 BC. English astronomer Edmond Halley (1656-1742) studied the behavior of the comet after its appearance in 1702. It was named in his honor after his death, following his correctly...
Jackie has competed in 4 olympic games, but has been in training for many years.
Halley's comet swings around Earth every 76 year, so in other words, you can see Halley's comet from Earth every 76 years.
yes, earth may occaisionally be hit by space debris but it usually will burn up in the atmosphere before it hits our planet.
Comets and Asteroids travel the solar system for the same reason the plants do, they just follow a different path. Asteroids are mostly orbiting the sun in between Earth and Mars in the Asteroid belt. While planets follow an elliptical path, comets follow a more elongated one. Comets that orbit the...
during a lunar eclipse the shadow of the celestial body blocks our view of the moon?
The fire makes it shine,and really bright too!But beware they can really hurt you!So if you see a comet you have about a 0.1%chance to survive and that's only if your at the edge of where the comet is going to land!
It's actually every 76 years, and the reasons why is that's how long it takes for it to circle around us in its orbit.
A comet is an object that has a tail made of gases and dust.
keiper belt because an asteroid belt type area but populated wit objectsmade up of mostly ice and dust.
The earth and comet has their own orbit which goes around the same sun
No. Comet's are made of ice, dust, and rocks leftover from the formation of stars. They usually circle the sun.Now: A Meteor is a rock in space. When it enters earth's atmosphere it becomes a meteoroid. When it hits earth's surface it becomes a meteorite.
Comets were usually named after the person that discovered it.
Hale-Bopp was seen closest to earth on 22 March 1997 in places like China, Mongolia and eastern Siberia.
There is a very big comet that passes the earth about every 76 years. It's called the Halley comet!
He was the second British Astronomer Royal, and he realized that sightings of a bright comet in the past were probably the same object and correctly predicted its next return; that comet is now named after him. He also did a lot of work on magnetic anomalies, was Captain of a sailing vessel in the...
Comet tails are made of parts of the comet, such as ice and water vapor, pieces of rock and dust, and whatever else the comet itself happens to be made of that have broken or evaporated off due to solar wind. This is why the comet trail always trails in a direction that is directly opposite from the...
No. Halley's comet does not pose any threat or Earth.
Most comets travel around the Sun in elliptical paths. The time it takes a comet to make a complete orbit is called its period. Some comets have short periods of less than seven years. Others travel in such huge orbits that they pass near the Sun only once in thousands or even millions of years. As...
probably not unless rocks are a reusable rescource
The main difference between asteroids and comets is what theyare made of. Asteroids are made of metals and rocky material, whilecomets are made up of ice, dust and some rocky material. Bothasteroids and comets were formed early in the history of the solarsystem, about 4.5 billion years ago....