5 billion yrs later, yea 5 billion yrs later, the sun use up its energy and become White Drawft...hmm then is this the end of human race? We cant live on Jupiter or other Jovian planets right? So any good idea about where we, human can live?

in 5 million years we'll either be spread all over the galaxy like Los Angeles in the desert , or long since self destructed... But it is something to think about... At least that's what I think ;)

I agree, after 5 billion years the world, and us, will be very different from now. Maybe our civilization will still be around by then, but it is nearly impossible to imagine how we would have evolved. Would we still be biological beings? If so, how would we have evolved? The thing is, 5 billion years is longer than there's been life on this planet, and Homo Sapiens have been around for about a blink of an eye, if we look at the big picture. In a million years maybe we will not be "Homo Sapiens" anymore. Also there is the thing with technology and how that would have an effect on the natural biological evolution. Will we change all that? Will we decide the course of, and speed up, our "evolution"? It's impossible to know how things will be 5 billion years ago, but I'm guessing that if the same intelligence that arose in Africa some million of years ago will exist in an unbroken 5 billion year chain, "we" will have spread out over large portions of this galaxy and probably other galaxies as well. 5 billion years is a long, long time...

5 billion years is a long, long, LONG time.

It's one of those things I don't worry about.

Here's an example. If you continue with the current growth rate (assuming we could, we don't need a discussion that 'things change in the future') of 1.1% per year (or a doubling time of about 50 years), then in 5 billion years we'd have

S=P(1 + 1.1%)^n

S= 5,000,000,000people(1.011)^5000000000years

S= breaks my computer's calculator.

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Live long enough to see Space!

We can get to space as a species. The above link is information about life-extension (living longer) so that you can personally see a space-based civilization.

The MPrize (a prize to encourage life extension research now contains over 3 million dollars.

Well if you had started at the beginning of the human existence and gone by reproduction rate there would be WWAAAAAAAAAAAYYYYYYYYYYY more humans today, but fortunetly we have sliced the world population in half many times. Killing other people is one of mankind's greatest achievements, from a certain point of view, for we have been doing it so long that it has become almost instictual. So, ya think the sun is going to be a problem? It is more likely that I will destroy the human race than our sun will. Oh and if you want a list of the five most plausable ways scientists have come up with that we will kill ourselves here it is, because right now I'm thankful we haven't (Thanksgiving pun intended).
1)Nuclear Holecost-only reason nukes haven't been used yet
2)Virus/Bacteria wipeout-ebola anyone?
3)Global Warming-not fast but it will probally hurt us a lot more than it did Kevin Cosner's career
4)Asteroid-even if it does hit Paris kaboom
5)Earthquake/Volcano-RING OF FIRE!!!!!!!

I will be long since gone so I'm not going to worry about it.

Typical Planetwatcher... it's always self self self with you, isn't it? LOL (Joke!!!!)

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"The stars are my home"
"I've seen things you people wouldn't believe... Attack ships on fire off the shoulder of Orion... I've watched c-beams glitter in the dark, near the Tanhauser Gate... all those moments will be lost, in time... like tears in the rain..."

The people who died at Hiroshima and Nagasaki would most likely be surprised to hear that, if they were in a position to hear anything that is.

Dave Mitsky

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Chance favors the prepared mind.
De gustibus non est disputandum.
Never attribute to malice that which can be adequately explained by stupidity.

Let said, not the death of the sun, but the Earth ^^, even earth has its death...so if the core use up its fusion, then what will happen to us? No air, no gravity, no atmosphere????

The fusion provides some heat to the earths surface, but it is insignificant compared to the solar heat we get. As far as the atmosphere and gravity are concerned, the total particle count, before, and after the fusion stops, will be about the same. Thus the gravity that holds us and the atmosphere to the earth will remain about the same.

One thing that would affect us is the lack of heat from the fusion that now keeps the earths core melted. If our theories about the magnetic field surrounding the earth are correct, this field would disappear with the core becoming cool. This field is what provides the most protection to us from the charged particles coming at us from all directions in space. We most likely could not survive without this magnetic field.

There is a brilliant article in the New Scientist magazine of the 6th December 2003, entitled Earth's future. they mention - Silicon Snow, Iron rain and an Argon Ice cap...

I would be very interested in hearing other members' views on this article.

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Damien,
International Baccalaureate Physics teacher
Optics, Photogrammetry and Remote Sensing Instrumentation Major
Admin: Pacific Science and Art

Oh how it hurts. Here I try to sound something like an educated person and I use "fusion" in place of "Fission". Sorry about that. The heat in the earth's interior is primarily from FISSION, radioactive decay, not fusion!

don't worry about it mate, I was figuring you meant that.....still sound intelligent!

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Damien,
International Baccalaureate Physics teacher
Optics, Photogrammetry and Remote Sensing Instrumentation Major
Admin: Pacific Science and Art

And Lava Rain

thats the one!!! what is your view on that article?

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Damien,
International Baccalaureate Physics teacher
Optics, Photogrammetry and Remote Sensing Instrumentation Major
Admin: Pacific Science and Art

Is that article publihed online? A URL would be great!

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Climate Change Australia

i am not actually sure, but i'll check for you

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Damien,
International Baccalaureate Physics teacher
Optics, Photogrammetry and Remote Sensing Instrumentation Major
Admin: Pacific Science and Art

I'll still be long since gone. Although it would be neat to watch the Sun's expansion to the red giant phase, as well as watching it collapse into a white dwarf. (From a safe distance of coarse.)

Our sun is a G2 star, therefore it can't be turn into red giant, except White Dwarf...

No, our sun will got to the red giant stage, but not the red super giant stage. It will expand to encompass Mercury, Venus and probably Earth.

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MacTalk - The Australian Apple Community - iPod, iPhone and Mac.

okay, who reckons that the expanding sun will take Earth, who reckons it won't? Give a reason for your answer (spoken like a true chalkie)

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Damien,
International Baccalaureate Physics teacher
Optics, Photogrammetry and Remote Sensing Instrumentation Major
Admin: Pacific Science and Art

According to every theory I've ever read the sun will expand beyond Earth, engulfing Mars as well. Conjecture states that every planet within the inner asteroid belt will be gobbled up by our little host star. How exciting!

However, if you do the calculations and compare them with the rate at which our big neighbor, Andromeda, is speeding towards us you'll find that the Milky Way will collide with the Andromeda galaxy in the next couple of billion years. That could prove more interesting than an expanding star.

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<span style='font-family:tahoma'>Reverend J. Vance Tyree</span>

The intuitive mind is a sacred gift and the rational mind a faithful servant. We have created a society that honors the servant and has forgotten the gift. - <span style='font-size:8pt;line-height:100%'>Albert Einstein</span>