How are Red Giants Created?
359720
throughout a stars life-cycle, it is constantly heating materials (hydrogen and iron) and pushing them to the surface to cool, and to the center to heat up and melt.\nThis is part of nuclear fission.\n\nafter a very long time, the sun starts to lose energy, and cant push the iron up from its core and gradually grows larger, turning red (hence red giant),\nEventually, the pressure from its mass, and it's failure to push it all away from its core will result in the star collapsing into itself, potentially turning into a black hole.
80050
the sun will become a red giant before it gets near death, it will actually expand and the planet earth will have been eaten up and incinerated well before the suns death . such is the life cycle of all stars.
852228
The are made mostly from existing elements, they'll take an element and bomabard it with protons and it become a new synthetic element that doesnt occure normally, they do all exsist in nature but are really rare and in very minute quantities
97241
Supernovae throw off some heavy crap when a star explodes.\n\nTake a look at the following link.  The graphe shows that iron is a special element.  When you fuse lighter elements, you release energy, and when you let heavier elements decay, you get energy.  But iron is going nowhere.  So a star starts out with lighter elements, which fuse and create heavier elements.  The more the sun uses up the small elements, the denser the core gets, and the more rapidly it fuses in the core.  Eventually, when most of the elements are used up, you'll have the core collapse and throw off the outer layers in a massive thermonuclear explosion.  The remaining material will mostly be iron, and the star will glow white-hot as a white dwarf for many years, until it evenbtually cools off and goes dark.  But some heavier elements will be thrown off by the explosion, including some that, in the rapid collapse, jumped the iron gap and absorbed energy from the nuclear explosion to become heavier than iron.  These heavier things will decay over time, releasing energy by fusion.
948233
They have solids cores.  Other than that the are mostly gas, due to the distance from the suns gravity.  When our solar system was formed most of the "heavier" elements stayed close to the major gravity pull, the sun. once out any other heavy elements that made it out that far condensed to gether to form cores.  Now; the farther away from the sun you go the coder it gets.  Now the gases that are out that far basically freeze and get "solid".  hope this helps!!\n\nBy the way- ALL planets need a core.  even though it might not be of same rocky material as other planets (Jupiter, saturn)..think of my explaination above.  If none of the solids came out that far out, they could get together to form a core, but something has to be in the center of a planet.
793719
Stellar Fusion.  Stellar Fusion can make elements up to Iron.  After that they can't fuse anything more heavy.  In really big stars, this limit causes the star to collapse, rebound, and explode, and it is thought that this explosion is powerful enough to fuse the other heavier elements.\n\nLately though, it seems that Supernovae are no longer enough, and there are physicists looking for other methods of fusion because stellar models predict that supernovae might not produce enough elements to explain the current observed amount of heavy elements out there....\n\nSo I guess it's still up in the air.
893208
Our star, the Sun (Sol), is a G-2 class star.  Eventually it will deplete its hydrogen (H), converting into a helium (He) cooler burning star.  When this occurs it will be a cosmocataclysmic and extinction level event as far as the Earth is concerned, for the Sun will hyperdialate 100 times its mass into a Red Giant Star, engulfing the orbit of the Earth.  This event will generate a spontaneous stellar radiation burst, frying half of each planet, and generating a powerful shock wave causing atmospheric violence and may even dislodge planets out of their orbits to realign in new orbits around the Red Giant.  Hence, because the orbits of the planets are not stationary, the Earth most likely will survive when the initial shock wave hits our planet, perturbing its orbit away from the expanding stellar mass, but still it will precipitate an extinction level event that will lay down a new Carboniferous Layer to the Geological Column.\n\nNext, after about one million years our Red Giant will deplete its helium, and due to its enormous mass gravity will cause the star to collapse, thus “crunching” and compressing its internal molecular structure into a White Dwarf Star, while it simultaneously explodes its outer shell, the photosphere, in a sudden catastrophic multi-shock wave event called a “Nebula Discontinuity Event”, or merely a “Nebula”.  This will simultaneously create a Local Compression Bubble around our region of the Galaxy.  Only larger Red Supergiants, not smaller Red Giants, undergo a supernova event and become Neutron Stars or Black Holes.  The new White Dwarf will have the mass equal to the size of the Earth, yet it will retain the electromagnetic field of its original G-2 class star phase.  The nebula event will most likely incinerate the planets with X-ray radiation causing sterilization on Earth, generating another extinction level event.  The shock waves will concentrically disperse the planets outwardly from the smaller cool burning White Dwarf, and Earth will become a dead frozen planet.
788685
Well, people live in Arizona, don't they? Click below.\n\n\n\n\nhttp://en.wikipedia.org/wiki/Red_giant
269280
Blue giant stars have left the main-sequence after exhausting their hydrogen fuel, leaving behind helium. Thus, blue giants fuse helium as their energy source. The star Rigel is a classic example of a blue giant.\n\nThis website for comfirmation --> http://www.enchantedlearning.com/subjects/astronomy/stars/startypes.shtml\n\nGod is spelled B-I-G B-A-N-G\n\nPBrax@netscape.com
1171713
Stars gain their energy through gravitational collapse. \n\nWhen the collapse raises core temperatures and pressures sufficiently, nuclear reactions begin. These reactions produce a lot of energy and a lot of photons. The photon pressure is sufficient to stop further collapse of the star.\n\nWhen the fusion materials are exhausted, collapse resumes. The core temperature and pressure then rise. When they are hot enough, further fusion of larger atoms occurs.\n\nThis continues up the periodic table until fusion is no longer possible. \n\nThe star then coninues to collapse to a very hot, degenerate ball. In some cases the temperature on the surface then gets high enough to cause a catastropic runaway fusion reaction of the helium on the surface, because the rate of fusion of helium is temperature dependent. \n\nThe start the explodes as a supernova. This throws off some matter (though not actually that much). The very high energy of the explosion is enough to produce heavier elements through nucleosynthesis.\n\nWhat is left is a tiny but very very hot star called a white dwarf. Because it is so tiny, it does not radiate much energy (it has a small surface area) so it is quite dim.
320983
Because of their creation.
1047786
Yes, in a couple of billion years, the Sun will exhaust most of its hydrogen and enter the Red Giant Phase, its radius will be equal to that of the orbit of Mars. \n\nAstronomical calculations are proof.
525144
A star by the burning of hydrogen into helium can only go so far into making the heavier elements. It takes a supernova explosion to make the really heavy elements. These are blown out into space where new stars may form and use these heavier elements, like our sun and earth.
804721
space giants.  Heres the web site.\n\nhttp://members.tripod.com/space_giants/
288574
Its subgiant stage, growing rapidly to become a red giant. \n\nSince it was born the sun has been growing in size ever so slowly. In 2 billion years it will be a lot warmer on earth. In 5 billion years the sun will have burned out its hydrogen supply. At that time the sun will be twice as bright as it is now and 75% bigger. But now the core begins to contract and get hotter. Eventually it gets hot enough for helium to fuse into carbon (by way of 7Be and 8Be). This new heatsource causes the sun to expands much more rapidly to become roughly 0,8 AU in diameter.
1029085
The Sun does not have enough mass to explode as a supernova, and its mass is below the Chandrasekhar limit. Instead, in 4–5 billion years, it will enter a red giant phase, its outer layers expanding as the hydrogen fuel in the core is consumed and the core contracts and heats up. Helium fusion will begin when the core temperature reaches about 3×108 K. While it is likely that the expansion of the outer layers of the Sun will reach the current position of Earth's orbit, recent research suggests that mass lost from the Sun earlier in its red giant phase will cause the Earth's orbit to move further out, preventing it from being engulfed. Following the red giant phase, intense thermal pulsations will cause the Sun to throw off its outer layers, forming a planetary nebula. The Sun will then evolve into a white dwarf, slowly cooling over eons. This stellar evolution scenario is typical of low- to medium-mass stars.
732762
Their materials collect together (via gravity) and make new stars.  Granted, they tend to be made of heavier materials and burn cooler (often red).\n\nStars collapse when they run out of material.  A star begins by fusing hydrogen into helium.  Eventually, the hydrogen runs out and the star begins to collapse until it is able to fuse helium into carbon.  This continues through various elements until it is largely iron.  A star is simply not able to fuse iron into anything else (their not massive enough), so it eventually has a final collapse, sometimes into a supernova.\n\nThis final collapse can leave three possible "leftovers":\n1.  A white dwarf - if the star is less than 3 x the mass of our sun, then the core will be left as a burning ember.  Eventually it will burn out to become something known as a brown dwarf, a dead star.\n\n2.  A neutron star - if the star is between 3 and 10 (I think) x the mass of our sun, the explosion compresses the core down enough that protons and electrons are crammed together to form a neutron star.  It's a bunch of neutrons so dense a teaspoonful would weigh, well, tons on the earth.\n\n3.  A black hole - if the star is especially massive, the collapse never ends.  The core itself cannot overcome the massive gravity that is created by a now extremely dense remnant, forming a black hole.