is the sun going to blast?

Question

a previous question that i posted was about the varying size of the earth and how the earth would end! and one of the answers stated that the earth would end when the sun explodes!! is the sun really going to explode? if so what are the scientifical facts? for how long has the sun been burning? if the sun is going to blast, how will it blast? is it going to blast because it is expanding? if so does it expand? or is it going to shrink and crate vaccum around it creating a force string enough for a back pull and blast the sun?

Answer 1

SUN WILL NOT EXPLODE
The Sun is about 4 1/2 billion years old AND it is 6% greater in radius than it was bfore.....it expands until it becomes a red giant

Answer 2

Yes... it will. Eventually, the sun will expand and become a red giant. It will grow so large, it will completely consume the planet Mercury and Venus will be nothing but a burnt out cinder orbiting very close to the sun's surface. On Earth, the seas will boil away and the atmosphere will all but disappear, leaving the blasting heat from the sun to scorch the earth.

For the last four billion years, the sun has been an efficient nuclear furnace, burning its fuel and throwing heat into the cosmos, including the very small portion of its heat that warms the earth. In another four billion years or so, the sun's fuel will run low. As it does, the bonds between the atoms fueling sun's furnace change. I could give you a very complicated explanation of what happens next, but the end result is that the surface of the sun begins to expand. The tricky part to understand is that, even though the sun increases greatly in size, its mass (think of it as weight), remains pretty much the same.

So once the sun's size becomes extremely huge... so huge that, as I mentioned earlier, it takes up the entire orbit of Mercury, the gravitational forces pulling the sun's surface back toward its center will become so extreme that the entire sun will collapse in upon itself. This collapse causes the sun to go from a red giant to what is known as a white dwarf.

Now as stars go, our sun is average in size. (You do know our sun is a star, right? If you get far enough away from our sun, it looks no different than any other star in the sky... because that's exactly what it is... a star.) If the sun had a much larger mass, then this collapse would continue beyond the white dwarf stage and become a black hole. But that's not in the cards for our sun... Its just not big enough to do that.

No matter how it turns out, we will all be long gone when it happens in another four billion years or so.

Answer 3

The Sun does not have enough mass to explode as a supernova. 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. However, Earth's water and most of the atmosphere will be boiled away.

Answer 4

If you mean will the Sun go Nova or Supernova, yes, eventually. But the planet Earth won't have to worry about that because in approximately 5 billion years, the sun is going to become a Red Giant star. When that happens, the radius of the sun is going to expand all the way out to the orbit of Mars, making all of the inner planets (Mercury, Venus, Earth and Mars) big hunks of burning rock.

Answer 5

No, the sun is NOT going to "blast" (...go supernova) To do so it would have to have at least 1.5 times more mass. Our sun should continue in its present stable condition for at least another 4-billion years.

As it nears the end of its life, the sun will expand into a red giant star, engulfing Mercury, Venus and probably Earth. Then it will shrink to a white dwarf star stage, ending its life with a diameter about the same as Earth.

Answer 6

The life cycle of the sun is well known, and yes someday it will balloon up, however it will not explode. Our sun is not massive enough to do that. Suns die in one of three methods:
Small stars like ours balloon out into a red giant, they burn up the closer planets, and collapse into a white dwarf, and then later they burn out into a brown dwarf.
Larger stars (10X sun) explode in a Nova. They destroy all their planets and expel a lot of matter and energy. The remnants of a star collapse into a neutron star.
The Largest Stars (40+Xsun): explode in a Super Nova. As with a Nova they destroy all their planets, and expel a lot of matter and energy. The remnants of the star collapse into a black hole.

The time scale for these events is in the billions of years. We can expect suns the size of our own to last 13 billion years. The earth is about 4.5 billion years old and the sun (Sol) is about 7 billion years old. So we have a good deal of time left on earth before it turns into a red giant.

According to Wikipedia: http://en.wikipedia.org/wiki/Star
“Stars spend about 90% of their lifetime fusing hydrogen to produce helium in high-temperature and high-pressure reactions near the core. Such stars are said to be on the main sequence.

As most stars exhaust their supply of hydrogen, their outer layers expand and cool to form a red giant. In about 5 billion years, when the Sun is a red giant, it will be so large that it will consume both Mercury and Venus. Eventually the core is compressed enough to start helium fusion, and the star heats up and contracts. Larger stars will also fuse heavier elements, all the way to iron, which is the end point of the process. Since iron nuclei are more tightly bound than any heavier nuclei, if they are fused they do not release energy — the process would on the contrary consume energy. Likewise, since they are more tightly bound than all lighter nuclei, energy cannot be released by fission. In old, very massive stars, a large core of inert iron will accumulate in the center of the star.“

Stars are just big balls of fire and fire has to burn a fuel. The star really isn’t on fire; it is plasma, super heated by being condensed into such a small object. This intense gravitational filed pulls the plasma together so tightly that it creates a process called fusion. Fusion is how the sun “burns,” and what gives us our light and heat. Currently, and for most of the star’s lifespan, it “burns” hydrogen: the simplest element in the universe. After the star runs out of hydrogen it moves on the next higher element and so on. As it does this it gradually gets bigger, but not enough to be a danger. When the star finally gets down to element 25, Manganese the process of fusion slows. When a star tries to burn element 26 Iron, it cannot, the Iron atom is just too tight. That is when the star balloons into a red giant and starts to collapse. At that time Mercury, Venus, and the Earth will be absorbed by the sun as its increasing radius pass the orbit of Earth, only 5 billion years from now. The dinosaurs lived about 75 million (0.075 billion) years ago, so we have a great deal of time left.

Answer 7

Yes. The sun system moves drawing a opening helix shape. It is going to blast at the end. Which means the end of earth life

Answer 8

I've heard that the sun will die in about 4 to 5 billion years. I think we know this from observing other similar stars. I also think that the sun will expand, and swallow the Earth's orbit and then collapse in on itself.

Answer 9

Its a footnote in the Big Bang Theory. We are one galaxy among Millions in the Known and Visible Universe. Each Galaxy has Billions and Billions of Suns, ours is but one, and on the molecular or gargatntuan scale it is miniscule beyond comprehension.

Answer 10

It will take 5 billion years to blast. First it will be converted into RED GIANT and swallow all the plantes around it and then blast. After that it will become a black hole.