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sun was formed 4.5 billion years old/and it in the middle of its life span.another 4.5 billions years ahead for our sun to go.

2007-01-14 18:45:33 · answer #1 · answered by Alien 4 · 0 0

Our star, the sun, was born in the heavens about 4.5 billion years ago. Our sun is about 1/3 of the way through its expected life. Scientists are now predicting the following events during the remaining life of our star:

In the next 1.1 billion years, its brightness will increase by 10%. This will super-heat our planet as a result of a severe greenhouse effect. All of the oceans on earth will boil away and all life will be destroyed.

In about 6.5 billion years, our sun will double in brightness and use up all of its supply of hydrogen fuel in its core. This will cause the sun to begin swelling as it uses hydrogen from the layers surrounding the core.

In about 8 billion years the sun will swell to 166 times its present size. This giant star will swallow up Mercury, Venus, and maybe even our Earth. Our sun will then be what scientists call a Red Giant because it will be very large and red in color.

After all hydrogen fuel is used, the sun will begin to use helium as its fuel. This fuel will burn very quickly and only last about 100 million years.

In about 12 billion years, the sun will eject much of its outer layers and become a smoldering, collapsed core that scientists would call a White Dwarf.

This will certainly be a violent end for our sun and the earth. This does not, however, mean the end of the human race. If our science and technology capability continues to advance, we may be able to explore and colonize other worlds. Home, for future humans, may be billions and billions of miles from our home world of earth..

2007-01-17 03:52:53 · answer #2 · answered by Anonymous · 0 0

The sun's current age determined using computer models of stellar evolution and nucleocosmochronology, is thought to be about 4.57 billion years.
The sun is about halfway through its main sequence evolution. The sun will spend approximately 10 billion years as a main sequence star. It is not big enough to explode as supernova, thus it will enter a red giant stage after about 4-5 billion years, which will bring an end to its existence.

2007-01-15 22:16:13 · answer #3 · answered by ap 2 · 0 0

The sun's current age determined using computer models of stellar evolution and nucleocosmochronology, is thought to be about 4.57 billion years.
The sun is about halfway through its main sequence evolution. The sun will spend approximately 10 billion years as a main sequence star. It is not big enough to explode as supernova, thus it will enter a red giant stage after about 4-5 billion years, which will bring an end to its existence.

2007-01-14 17:17:00 · answer #4 · answered by ankur_thakuria 1 · 0 0

The sun was born around 4.57 billion years ago. It will last somewhere around another 5 billion before it enters the red giant phase, eventually leading to the Sun's death as a white dwarf when it runs out of fuel and cools.

2007-01-14 16:55:55 · answer #5 · answered by Digital Haruspex 5 · 1 0

Born About 4.5 to 5 Billion years old

Start to Burn out of Energy About 5 Billion more years

2007-01-14 17:00:27 · answer #6 · answered by froglegspete 2 · 0 0

the sun was born around 4.5 biliion years ago. scientist predict in another 4.5 billion years, the sun will expand into a red giant and engulf the earth and other planets until it cools down into a white dwarf

2007-01-15 02:44:17 · answer #7 · answered by Anonymous · 0 0

The sun was born about 4.6 - 4.8 billion years ago

2007-01-14 22:01:31 · answer #8 · answered by Anonymous · 0 0

our sun was born loooooooooooong ago and is sure to last till eternity

2007-01-14 17:12:40 · answer #9 · answered by Anonymous · 0 0

ACTUALLY ACCORDING THEORIES MADE BY SCIENTISTS SUN WAS BORN BEFORE 4.5BILLION YEARS.
AND ALSO IT MAY LAST NEXT 4TO5 BILLION YEARS.

2007-01-14 18:14:23 · answer #10 · answered by PANH 1 · 0 0

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