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As usual in Nature, death gives way to new life, so it is with Stars. When a star dies, if it runs out of fuel, small stars will expand (like your Sun) until it explodes. Big stars grow smaller until they are brown dwarfs and eventually, so the theory goes, implode into a super heavy singularity known as a Black Hole.

Eventually, most Black Holes will explode because the neutrons and electrons do not match together in such a dense atmosphere. When this happens, we have a Supernova, well off the biggest astronomical event known to us. The gasses, leftover of the explosion, will here and there coerce and form new stars. Famous is the Horse head in the Andromeda Nubia where hundreds of new stars are seen born.

2007-01-09 01:51:53 · answer #1 · answered by dimimo 2 · 0 0

Stars and Planets are born very similarly. It all starts with dust. Each piece of matter in this universe has a magnetic pull. So the dust starts to clump together. After a while, you get a lot of dust clumped together. The matter which has formed starts pulling in larger things. The difference between planets and stars is the fact that starts need a lot of hydrogen in their clump of matter. If you don’t get a lot of hydrogen (like metals or rocks) then you form a planet. If you do have a lot of hydrogen (emphasis on a lot) eventually the gravitational pull form the weight of the hydrogen will cause the star to ignite. Let me say that again, the weight of the star causes the hydrogen to ignite cause a nuclear reaction which continues until there is no more fuel for the star to burn.

Planets don't die

Sun die when they have used up all of their fuel, four options

nova
Super nova
Black whole
Solid Piece of hot honkin carbon

With a Solid Piece of hot honkin carbon, basicly what happens is that as the sun changes hydrogen into helium for fuel it expands. The more it converts hydrogen into helium the father out the outer layer expands. Eventually the gravity from its mass can not hold the sun together any longer and the outter layers drift away to become dust and make new stars.-this is whats going to happen to our star

With a nova, super nova, and black holes - the wieght of the star exerts an emence amount of pressure on the core, as more fuel is being burned more weight is added through the thermal nuclear reaction at the core. Through this reaction the star gets heavier and eventually the star collapses under its own weight. This is what separates the nova from the black holes.

With black holes the matter just condences into a really dence peice of matter.

With nova and super nova's the matter bounces of the core of the sun resulting in a thermal nuclear explosion (a nova, a super nova is just a bigger explosion)

2007-01-09 09:48:49 · answer #2 · answered by Mr. DC Economist 5 · 0 0

Ok, basic earth science 101. A large nebula (gasses in space) starts to compress into a point because of gravity, as it compresses gravity continues to build and a large portion of the nebula becomes a prostar or a star that has not yet begun nuclear fusion. Once the prostar gains enough mass, the pressure and heat within the center gets so high that the hydrogen gas inside begins to fuse with the other hydrogen atoms and forms helium this process is known as nuclear fusion of hydrogen. The star then begins its main stage. excess gasses and debris that did not become part of the star orbit slowly around the new star coliding into each other and because of their gravity sticking to each other and growing larger and larger. Eventually these "globs" of space crud gets large enough that it's own gravity shapes it into a sphere, and it is an official planet. Millions of years later, the sun will begin to run out of those hydrogen atoms to fuse, and it will begin to fuse Helium atoms together, however in doing so the star must become even more dense and hot so that expands the outside gasses of the star and actually make the star larger, this is when the star becomes known as a "red giant". Many of the closest planets will be engulfed by the expanding star and incinerated. At any rate, the Star will eventually either super nova and explode comletely destroying surrounding planets, become a black hole which would draw in and crush anything surrounding, or become a black dwarf losing most of its gravitational force and heat freezing closest planets and letting the farthest drift away into space to be smashed up and form new asteroid, comets and dust to form new planets. So there you have it. The entire process of stars and planets being "born" and "dieing"

2007-01-09 09:58:00 · answer #3 · answered by notallchipsarefood 3 · 0 0

planets don't 'die' unless something collides with them - stars also don't die they just change form over time ( except supernovas ) stars are so massive that the material they are made of is under such pressure that an atomic reaction starts and they 'shine' from the energy being released

stars can eventually cool so much that they no longer emit energy so i suppose you could say they 'died'

MAGNETIC PULL - only if you want to call GRAVITY magnetism

you may also want to Google the difference between FISSION and FUSION then you will know the difference between suns and bombs

you need a very massive ( and very rare ) star to have enough mass to potentially form a black hole ( there is contradictory work on whether this would happen or a supernova would be the result )

and this is the SCIENCE section ? LOL

2007-01-09 09:44:27 · answer #4 · answered by Anonymous · 0 0

stars -

Where are Stars Born here is yuor answer

Main Sequence Stars

Main sequence stars are stars, like our Sun, that fuse hydrogen atoms together to make helium atoms in their cores. For a given chemical composition and stellar age, a stars' luminosity, the total energy radiated by the star per unit time, depends only on its mass. Stars that are ten times more massive than the Sun are over a thousand times more luminous than the Sun. However, we should not be too embarrassed by the Sun's low luminosity: it is ten times brighter than a star half its mass. The more massive a main sequence star, the brighter and bluer it is. For example, Sirius, the dog star, located to the lower left of the constellation Orion, is more massive than the Sun, and is noticeably bluer. On the other hand, Proxima Centauri, our nearest neighbor, is less massive than the Sun, and is thus redder and less luminous.

Since stars have a limited supply of hydrogen in their cores, they have a limited lifetime as main sequence stars. This lifetime is proportional to f M / L, where f is the fraction of the total mass of the star, M, available for nuclear burning in the core and L is the average luminosity of the star during its main sequence lifetime. Because of the strong dependence of luminosity on mass, stellar lifetimes depend sensitively on mass. Thus, it is fortunate that our Sun is not more massive than it is since high mass stars rapidly exhaust their core hydrogen supply. Once a star exhausts its core hydrogen supply, the star becomes redder, larger, and more luminous: it becomes a red giant star. This relationship between mass and lifetime enables astronomers to put a lower limit on the age of the universe.

Death of an "Ordinary" Star

After a low mass star like the Sun exhausts the supply of hydrogen in its core, there is no longer any source of heat to support the core against gravity. Hydrogen burning continues in a shell around the core and the star evolves into a red giant. When the Sun becomes a red giant, its atmosphere will envelope the Earth and our planet will be consumed in a fiery death.

Meanwhile, the core of the star collapses under gravity's pull until it reaches a high enough density to start burning helium to carbon. The helium burning phase will last about 100 million years, until the helium is exhausted in the core and the star becomes a red supergiant. At this stage, the Sun will have an outer envelope extending out towards Jupiter. During this brief phase of its existence, which lasts only a few tens of thousands of years, the Sun will lose mass in a powerful wind. Eventually, the Sun will lose all of the mass in its envelope and leave behind a hot core of carbon embedded in a nebula of expelled gas. Radiation from this hot core will ionize the nebula, producing a striking "planetary nebula", much like the nebulae seen around the remnants of other stars. The carbon core will eventually cool and become a white dwarf, the dense dim remnant of a once bright star.

how is a planet born here is yuor answer

whan the sun the sun is created losse rocks gasses and dust binds to gather via gravity and the planet is created ovsly this takes millions of years

death of a planet here is yuor answer

a planet can not die by itself like a sun but if somthing big like a big meotre all life we be wiped out if a sun turns into a red gaint it may get get sawlien up if it near the sun.

hopes that helps

2007-01-09 10:09:51 · answer #5 · answered by coolboy 2 · 0 0

braxton_paul's correct about the star birth side of things. How stars die depends on how big they are. As stars use up their hydrogen, by fusing it into heavier elements, they become unstable. Most stars then swell up to become red giants, blow off their outer layers as planetary nebulae and then settle down to grow old and cold. Really big stars go out in a blaze of glory and explode as supernovae, leaving behind either a neutron star or a black hole, depending on how big they were to start with. Elements heavier than iron can't be created in stars - it takes too much energy. Supernovae are very energetic though, and that's where all the heavier elements are created.

This makes things nicely circular because two other things happen when a supernova goes off - the heavy elements are blown out into the interstellar medium (the ISM), ready to be part of the next star system, and the shock wave from the supernova starts the contraction of a dust cloud, and we're on the way to forming new stars.

2007-01-09 10:20:02 · answer #6 · answered by Iridflare 7 · 0 0

Both stars and planets are born the same way, within vast clouds of gas and dust drifting in space. A star or stars form first from this material. They gather in more and more of it, becoming denser and denser as they do. As the density of these young stars goes up, the temperature in their centers increases. Finally, at a temperature of about 10-million degrees Kelvin, a process called 'nuclear fusion' begins. This is the same thing that happens in a hydrogen bomb only in a star it just goes on and on. New planets use the same gas and dust from the cloud to form, but their central temperature never gets high enough to start the nuclear fusion.

2007-01-09 09:49:21 · answer #7 · answered by Chug-a-Lug 7 · 0 0

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