The Sun Is Getting Hotter

Discussion in 'Astronomy, Exobiology, & Cosmology' started by jumpercable, Feb 2, 2007.

  1. jumpercable 6EQUJ5 'WOW' Registered Senior Member

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  3. IceAgeCivilizations Banned Banned

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    Is Al Gore talking about this?
     
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  5. jumpercable 6EQUJ5 'WOW' Registered Senior Member

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    I don't believe he's mentioned this small little bit of science info to his lecture series on the subject of global warming yet.
     
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  7. James R Just this guy, you know? Staff Member

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    The UN report which is about to be released states categorically that solar fluctuations are not the primary cause of the current global warming trend - it is human caused.
     
  8. jumpercable 6EQUJ5 'WOW' Registered Senior Member

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    In about 200 million years from now we won't have to worry about solar fluctuations contributing to any current warming trend.

    http://www.valdosta.edu/phy/astro/pl_shows/bh_2001/bh/page10.html
     
  9. eburacum45 Valued Senior Member

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  10. jumpercable 6EQUJ5 'WOW' Registered Senior Member

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    Chances are, the closest star system that is very similiar to our own sun in terms of it's own evolution (same basic size, age, type and luminosity), Alpha Centauri is probably on the same schedule (or close to it) on becoming a Red Giant sun just like ours some day. So, I would chose for starters, heading to Zeta2 Reticuli to set up shop before our sun starts to turn up the heat a little. I think it probably already has. 200 million years from now, an air conditioner won't do you much good. Come to think of it, neither will a cold beer.
     
    Last edited: Feb 3, 2007
  11. Janus58 Valued Senior Member

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  12. cato less hate, more science Registered Senior Member

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    all stars undergo this process, its a byproduct of the gravity-fusion process.
     
  13. jumpercable 6EQUJ5 'WOW' Registered Senior Member

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    I'd say our sun's evolution into becoming a Red Giant in a few billion years, to some extent, has probably already started. If mankind wants to hang out a little longer in our galaxy, no time better than the present than to start making some plans to get off planet Earth before things start to heat up around here. 200 million years and counting > 199,000,000, 198,000,000.........
     
    Last edited: Feb 4, 2007
  14. Montec Registered Senior Member

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    Hello all

    How about this for an "idea"

    First you have a "headlight effect" for EM radiation emitted from a moving EM source (the Sun).
    Second you have a dipole measurement of the Sun's velocity with respect to the CMBR (U2 Anisotropy Experiment, COBE and WMAP data).
    Third you have the intersection of the Earth's ecliptic orbit (currently within 12deg) with the measured velocity vector of the Sun.
    Fourth you have a 100,000 year cycle for Earth's ecliptic angle with respect to the ecliptic mean of the solar system.

    What this gives is a 100,000 cycle of the Earth moving into and out of a stronger solar flux of EM radiation produced by the "headlight effect" of the Sun's motion through space.
     
  15. Fraggle Rocker Staff Member

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    I've been telling you guys about this for more than a year. One of those magazines that only dentists subscribe to (like maybe Smithsonian) reported that the polar ice caps on Mars were melting. Since there are no humans on Mars burning fossil fuels, the only explanation for Mars's "global warming" had to be an increase in solar radiation.

    This does not contradict the global warming theory for Earth, but it does partially contradict its anthropogenic slant. Considering how politicized that is, this is an important discovery. (Like, when did Al Gore become a scientist? The man is nothing more than a politician, and not a terribly bright--or even slick--one at that.)
     
  16. S.A.M. uniquely dreadful Valued Senior Member

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    What is the atmosphere like on Mars? What is its environmental history?

    Does it have weather cycles?

    Can we compare events on Mars with events on Earth?
     
  17. madanthonywayne Morning in America Registered Senior Member

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    Well, they orbit the same star and derive all their energy from that star. It's also pretty clear that man is not responsible for any change in temperature on Mars. So if the temperature on both planets is rising, and the large nuclear reactor they derive all their energy from is heating up, the conclusion seems obvious.

    Of course reaching the obvious conclusion would not suit the political needs of global warming alarmists. So it will be delayed as long as possible.
     
  18. jumpercable 6EQUJ5 'WOW' Registered Senior Member

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    I'm not to sure about martian rain showers or snow storms, but definetly there's probably a couple of frozen ponds somewhere on it's surface. Break out your ice skates.
     
  19. James R Just this guy, you know? Staff Member

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    The atmosphere is very thin. Originally, Mars probably had more of an atmosphere, but owing to its lower gravity it probably lost most of its atmosphere. At one time, it most likely had liquid water on the surface, but that is no longer the case.

    Yes. It has storms with very high winds - hundreds of kilometres per hour. But the winds don't have quite the same force as Earth winds due to the much lower atmospheric pressures. Nevertheless, dust storms are quite common, and there are also "seasons".

    The current composition of Earth's atmosphere is largely determined by the actions of lifeforms on the planet. In particular, this accounts for the extremely large abundance of free oxygen. The atmosphere of Mars is quite different.

    Obviously, Mars is significantly further from the Sun than Earth, which has also affected its climate in fundamental ways - just as Venus has suffered from being closer to the Sun than Earth.

    Currently we seem to be in a high point of the solar cycle. Yes, the Sun is going through a warmer-than-average phase, and this might account for various observations on Mars. But climatologists have considered the Sun's warming as it affects the Earth, and concluded that the current global warming we are experiencing cannot be due solely to a warming of the Sun (as I said in my first post to this thread).
     
  20. S.A.M. uniquely dreadful Valued Senior Member

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    Thanks.

    Do we know much about weather conditions on other planets?
     
  21. James R Just this guy, you know? Staff Member

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    Yes, a lot.

    We can observe the atmospheres of other planets with telescopes. Numerous space probes have also visited all the planets. And we can bounce radar off the planets, and look at infra-red signatures and so on.

    In the case of Mars, the weather is extraordinarily well studied, given that spacecraft such as the Mars Explorer and Mars Observer have been orbiting the planet taking pictures and measurements for a number of years now.
     
  22. John99 Banned Banned

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    cant cure cancer, cant cure aids, cant cure a headache, can make fake cheese. what will the sun be like in 5 billion years? mkay
     
  23. madanthonywayne Morning in America Registered Senior Member

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    Can't use an apostrophe.
     

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