Waht will happen if our SUN EXPLODS / DISAPPEARS--?

Question

what will happen to life on earth ..... have we even thought about being prepared ?????

Real question is Do we have to be Dependednt on sun - for survival - when are going to start developing stuff so that life will stiil be there even if sun is not there ???

Answer 1

The Earth will move to another star, but we will be ghost before it gets there.

Answer 2

How many years will it take before the Sun explodes or disappears?

Here is the short answer:
Four to five billion years (4-5,000,000,000 years)

The Long Answer:
The Sun will not explode; it is too small to "go nova." It WILL expand as it fuses the last of its core hydrogen. The outer layers of gas will swallow some inner planets (possibly even the Earth). Then the inner parts of the Sun will stop fusing, contract, and become a white dwarf. It will remain a small, hot, slowly- cooling dwarf for many tens of billions of years after that. (It will have most of the heat of a full-sized star, but only a tiny surface area with which to radiate it. Therefore, it will take a very long time to cool down. This will not help us; it will be too cold to support life on Earth by then, even if the Earth could survive the red giant phase.) Scientists based this picture of the Sun's future on the basic nuclear reactions in a star's core. The rates of these reactions depend upon the mass of the star. (smaller stars burn more slowly, and thus longer, than more massive ones, but I could be oversimplifying things.) Scientists use planetary orbits and the laws of orbital dynamics to estimate the mass of the Sun. So, with the mass of the Sun and the rate at which this mass is consumed by fusion, we can guess that the Sun's lifetime will be 9 billion or 10 billion years, total. We know (from Earth's geology and Moon rocks, for example) that the age of the solar system is 4.5 or 4.6 billion years. We think the planets formed at roughly the same time as the Sun. Therefore, based on current scientific theory, the Sun will expand in four or five billion years."

Answer 3

Make sure that you always have some spare flashlight batteries.

If the sun disappeared then life would stop in a few days. People would light fires to keep warm and the whole world would become a smog zone and the oxygen would be used up. The plants would all die without light but before that happens they will all freeze because there would be a global frost in a few days. And the frost would get so cold after a few months that the air would turn to liquid and freeze too.

However, if you live in Iceland then the geothermal energy might keep you going for a few more years.

Answer 4

We can't survive without the sun. Period.

But we won't have to. The sun isn't massive enough to explode and nothing just disappears. The sun will burn out in about 5 billion years, but nothing else will happen to it.

Answer 5

We will change the fuse-wire of the sun if it explodes and attach a good voltage disappears.

Dont worry about defect ,the sun is still under the warramnty-period.

In case of its disappearence, we just have to ring the insurance company that we have insured with .They will replace it,

Answer 6

When the sun expands, it will engulf many planets, including Earth. However, scientists don't predict that this will happen for many millions billions of years. I doubt there'll even bee life on this planet then.

Answer 7

Yes.

We keep a spare sun in a box under the stairs.

So don't worry.

Answer 8

Not till another 200,000 years at least??

Worry about Polar Shift first...

Answer 9

What life on earth?

Answer 10

No life even for polar bears.