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2006-06-22 15:54:50 · 8 answers · asked by :**Danny**: 2 in Science & Mathematics Astronomy & Space

8 answers

The Sun, in 4.5 billion years supposedly, WILL start to swell. It will get bigger, and en-gulp Mercury and Venus. The atmosphere will evaporate, water will melt, and life will be gone. The sun will swell enough to devour the earth, then shrink, grow, Turn into a planetary nebula, then shrink, for the last time, into a white dwarf. Then In a few billion years, cool down to a black dwarf.

The reason the sun expands, In case you want to know, Is because of its fuel supply. The energy from the sun comes from nuclear fusion of Helium. When the helium supply runs out, The sun has to fuse hydrogen, therefore making the sun swell. The sun then will Shrink, once its helium supply is restored, grow again, then cast out a planetary nebula (For what a planetary nebula looks like, Look up the ring nebula) then it wont have enough hydrogen to grow back to the normal size...and become a white dwarf. Eventually, it will cool into a black dwarf and die.

2006-06-22 15:57:27 · answer #1 · answered by iam"A"godofsheep 5 · 0 0

Since I already answered a similar Yahoo! Answers question by "chels" called "What is the worst thing that could hurt the earth?" (see the URL in the "Sources" section at the end of this answer), I'll give a slightly modified answer here as follows.

If by "world" you mean planet Earth, then, yes, there will be an end.

In about seven billion years, the Sun will grow into a red giant star and melt the Earth.

The Sun will transform all the hydrogen it has into helium by fusion of hydrogen nuclei into helium nuclei. The helium will accumulate in the Sun's nucleus, and the Sun's volume will increase. Its temperature will also increase. As a consequence, In about three billion years, water in the Earth's oceans will evaporate. In about seven billion years, the Sun will ultimately swallow Mercury, and its temperature will be so high that the Earth's rocks will melt.

After that, the Sun will have burned all the helium in it and shrink into a white dwarf star, so the Solar System, including the Earth, will freeze.

That will mark the end of the Earth.

Now, if by "the world" you mean humanity, the end of the Earth will also probably mean an end to humanity, since it seems highly unlikely that humans will find a way to emigrate to a stellar system other than the Solar System.

2006-06-22 22:59:56 · answer #2 · answered by me 5 · 0 0

Certainly do ! It's called evolution of the Sun. Some day in the future the Sun will swell up into a Red Giant and engulf all the inner planets, including Earth, and possibly Mars too.

2006-06-22 23:02:22 · answer #3 · answered by Anonymous · 0 0

I believe there will be an end to this world as we know it.

2006-06-22 23:04:56 · answer #4 · answered by changeling 6 · 0 0

No. But do believe in end of life in body but not spirit. Spirit continues to live in light or in darkness.

2006-06-22 23:01:16 · answer #5 · answered by orange2d@sbcglobal.net 1 · 0 0

if by 'world' you mean the Earth, then yes i believe that it will end due to the natural course of entropy and disorder.

2006-06-22 23:46:04 · answer #6 · answered by the redcuber 6 · 0 0

Yes, after many years later sun off but it take long time to it be off completely. maybe 5 milliard years later.

2006-06-23 09:28:08 · answer #7 · answered by Anonymous · 0 0

Or for those Catholics out there (represent!) the birth of the anti-christ is a pretty compelling arguement.

2006-06-22 23:03:30 · answer #8 · answered by Goose 2 · 0 0

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