I dont know if this is true some one mentioned it to me a while back,they said that at the rate the sun burns up and shrinks,40,000,000 years ago it would have covered the earth,has anyone else heard this?
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The sun?
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lithium.
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I havn't heard of that before what I know is in a really really long time from now the sun will be come a Red Giant and when it becomes a Red Giant it will expaned to much that it will cover the earth so the earth will not be here HEH.
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Couple references on the subject of the "shrinking sun":
"The diameter of the Sun over the past three centuries" (M. Toulmond, 1997)
Abstract: 17th century measurements of the solar diameter indicate values which are about 10" (0.5 per cent) larger than the present figure of approximately 1920". The apparent enlargement is smaller (3") for measurements made during the 19th century. Has the diameter of the Sun diminished significantly over the past three centuries or is the reason for the difference located in the methods used or the instruments employed during the period? In this paper, a comparison of 30 series of measurements, obtained at various epochs over the last three centuries, is made with about 900 modern measurements applying early techniques and instruments. This investigation reveals the necessity of instrumental corrections, notably the effect of diffraction. When these corrections are taken into account, a homogenised database, extending over three centuries, can be considered. This does not reveal any sensible secular variation in the solar diameter and leads to a result for the semi-diameter at 1AU of 960.0"±0.1".
"Accurate Determination of the Solar Photospheric Radius" (Brown & Christensen-Dalsgaard, 1998)
Abstract: The Solar Diameter Monitor measured the duration of solar meridian transits during the 6 years 1981 to 1987, spanning the declining half of solar cycle 21. We have combined these photoelectric measurements with models of the solar limb-darkening function, deriving a mean value for the solar near-equatorial radius of 695.508 +- .026 Mm. Annual averages of the radius are identical within the measurement error of +- .037 Mm.
"The diameter of the Sun over the past three centuries" (M. Toulmond, 1997)
Abstract: 17th century measurements of the solar diameter indicate values which are about 10" (0.5 per cent) larger than the present figure of approximately 1920". The apparent enlargement is smaller (3") for measurements made during the 19th century. Has the diameter of the Sun diminished significantly over the past three centuries or is the reason for the difference located in the methods used or the instruments employed during the period? In this paper, a comparison of 30 series of measurements, obtained at various epochs over the last three centuries, is made with about 900 modern measurements applying early techniques and instruments. This investigation reveals the necessity of instrumental corrections, notably the effect of diffraction. When these corrections are taken into account, a homogenised database, extending over three centuries, can be considered. This does not reveal any sensible secular variation in the solar diameter and leads to a result for the semi-diameter at 1AU of 960.0"±0.1".
"Accurate Determination of the Solar Photospheric Radius" (Brown & Christensen-Dalsgaard, 1998)
Abstract: The Solar Diameter Monitor measured the duration of solar meridian transits during the 6 years 1981 to 1987, spanning the declining half of solar cycle 21. We have combined these photoelectric measurements with models of the solar limb-darkening function, deriving a mean value for the solar near-equatorial radius of 695.508 +- .026 Mm. Annual averages of the radius are identical within the measurement error of +- .037 Mm.
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lithium.
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The sun will expand to a red giant and then a little while after that it becomes a White Dwarf. Then it will supernova.
http://spaceboy.nasda.go.jp/note/hoshi/e/hos01_e.html
http://spaceboy.nasda.go.jp/note/hoshi/e/hos01_e.html
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Originally posted by Josh777
well it has to be doing something!
It fuses hydrogen atoms into helium atoms, giving off tons of energy (light & heat) in the process.
edit: Link with some info about the Sun: http://seds.lpl.arizona.edu/nineplanets/nineplanets/sol.html
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JohnR7
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The sun is a type of God, and the moon of man. And as the sun far surpasses the moon in power and glory, so far does God surpass man. And as the sun remains ever full, never becoming less, so does God always abide perfect, being full of all power, and understanding, and wisdom, and immortality, and all good. But the moon wanes monthly, and in a manner dies, being a type of man; then it is born again, and is crescent, for a pattern of the future resurrection. In like manner also the three days which were before the luminaries, are types of the Trinity, of God, and His Word, and His wisdom. And the fourth is the type of man, who needs light, that so there may be God, the Word, wisdom, man.(Theophilus of Antioch. AD 169)
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Jesus lithium.
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How does jesus fit into the universe. This is off topic, but do you think when we find life on another planet there going to believe in jesus or a christian god most likely not.
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off topic or whatever im not leaving Jesus out of any post 
Well speaking the same way intellegent life on another planet is unlikely and totally hypothetical.
Well speaking the same way intellegent life on another planet is unlikely and totally hypothetical.
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