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It's so diffuse that the Earth has passed through comets' tails without anybody except scientists noticing.
On the second-to-last pass of Halley's, spectroscopy revealed cyanide, a poisonous gas, in the comet's tail and there were localized panics that the Earth would be gassed to death. Of course, nothing of the sort happened because the thinness of the gas amounted to less than one molecule per person.
What else can I help you with?
How do comets behave?
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.
What is the most dense material in the world?
try this website, its very helpful http://www.google.com/
How did Comet west change the way astronomers think about comets or the solar system?
Comet West was remarkable in its brightness and tail formation, providing astronomers with valuable data to study the composition and behavior of comets. It helped to confirm that comets are made of ice and dust, and its disintegration provided insights into the dynamics of comets in the solar system. Overall, Comet West contributed to advancing our understanding of comets' role in the formation and evolution of the solar system.
A small icy object that can have a tail 10 million km long?
These are comets. They are usually in very eccentric orbits around the sun, spending most of their time way out beyond the orbit of the outer planets. Here it is cold and they have no tails. They are also very difficult to detect here as they are quite dark, small and the distances are large. As they orbit closer to the sun the surface heats up, and the ice vapourises. Two tails are often formed, a gas tail which points directly away from the sun, effected by the solar wind, and a dust tail which is left behind in the path of the orbit.
Can comets turn into black holes?
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 than it already is (ever try to squeeze a chunk of putty?). Just because the odds of it turning into a black hole is very small doesn't mean it can't turn into one. {ADDED} No, a comet cannot become a black hole. It is far too small and light (low mass), and loses material every time its orbit brings it relatively close to the Sun - the characteristic tail is that lost material, which like the head, reflects Sun light so is visible. The only objects cable of becoming black holes are the extremely dense cores of very, very large stars that die as supernovae, and even then, not all them become black holes.
How do comets behave?
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.
What is the most dense material in the world?
try this website, its very helpful http://www.google.com/
Is it true molten material in the asthenosphere rises in convection currents because heated materials become more dense?
Actually, hot, less dense material rises, and cold, denser material sinks. Denser material will be heavier (per unit volume) and gravity therefore pulls it down. Less dense material has buoyancy and rises. It's very logical.
How did Comet west change the way astronomers think about comets or the solar system?
Comet West was remarkable in its brightness and tail formation, providing astronomers with valuable data to study the composition and behavior of comets. It helped to confirm that comets are made of ice and dust, and its disintegration provided insights into the dynamics of comets in the solar system. Overall, Comet West contributed to advancing our understanding of comets' role in the formation and evolution of the solar system.
In which material does a light ray entering from air slow down more?
Glass, since glass is a very dense material it will take a while for the light to enter.
A small icy object that can have a tail 10 million km long?
These are comets. They are usually in very eccentric orbits around the sun, spending most of their time way out beyond the orbit of the outer planets. Here it is cold and they have no tails. They are also very difficult to detect here as they are quite dark, small and the distances are large. As they orbit closer to the sun the surface heats up, and the ice vapourises. Two tails are often formed, a gas tail which points directly away from the sun, effected by the solar wind, and a dust tail which is left behind in the path of the orbit.
Can comets turn into black holes?
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 than it already is (ever try to squeeze a chunk of putty?). Just because the odds of it turning into a black hole is very small doesn't mean it can't turn into one. {ADDED} No, a comet cannot become a black hole. It is far too small and light (low mass), and loses material every time its orbit brings it relatively close to the Sun - the characteristic tail is that lost material, which like the head, reflects Sun light so is visible. The only objects cable of becoming black holes are the extremely dense cores of very, very large stars that die as supernovae, and even then, not all them become black holes.
What part of the rain forest is very dense?
Most of the rainforest is very dense, but the understory and canopy are both pretty dense. The canopy and the understory are both very dense but the undersrory is the most dense.
What makes Halley's comet a comet?
its tail has a blueish color trail. -- Other then its tail like figure in space (which is made of gas and dust), just about all comets have similar traits, such as how they are made of ice of very deep cold temperature, almost as cold as dry ice. Except the ice, they also have the similar trait of having dirt attached to them or even in them, which is why some people call comets a "dirty snowball."
Why are comets not seen very often in the night sky?
Comets spend most of their time far from the Sun in the outer solar system and are only visible when they come close enough to the Sun to develop a visible coma and tail. Additionally, their orbits may not bring them close to Earth very often, making them appear infrequently in the night sky.
How are comets asteroids and meteorites different?
Asteroids orbit the Sun between the orbits of the planet Mars and the planet Jupiter. Comets orbit the Sun on very elliptical orbits, originating from the Kuiper belt beyond the orbit of Neptune or the Oort cloud at the edges of the solar system. Comets are also usually (but not always) icy bodies that give of gas and dust (a tail) as they approach and get heated by the Sun. Meteorites are bodies that were Asteroids or Comets that have hit the planet Earth and landed on the surface.
Very dense material when heated will give off a spectrum?
Heating a dense material can cause it to emit light at specific wavelengths, creating a spectrum. This is known as incandescence, where the material's atoms release energy in the form of visible light as they vibrate or move more energetically. The specific colors in the spectrum depend on the material's composition and temperature.
