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    1. ASP: An Ancient Universe - The Age of the Oldest Stars
    ... We can determine how long a star can shine by this process as follows: we know how much energy comes from fusing each atom of hydrogen, the amount of hot hydrogen in the star's core, and how fast the star is using its energy. ...
    [ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/56/ancient2.html -- 8.4 Кб -- 02.10.2012
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    2. ASP: An Ancient Universe - The Age of the Chemical Elements
    ... Supernova 1987A Just after the Big Bang, the universe was made almost entirely of the simplest elements: hydrogen and helium. ... And, indeed, they have greater proportions of hydrogen and helium. ...
    [ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/56/ancient4.html -- 8.8 Кб -- 02.10.2012
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    3. ASP: Black Holes to Blackboards: The Sun is a Mass of Incandescent Gas
    ... A gigantic nuclear furnace, . Where hydrogen is built into helium . At a temperature of millions of degrees. ...
    [ Сохраненная копия ]  Ссылки http://www.astrosociety.org/pubs/mercury/9705/lockwood.html -- 12.1 Кб -- 02.10.2012
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    4. ASP: Astrobiology: The Final Frontier of Science Education
    ... that Earth formed with only simple inorganic molecules such as hydrogen, methane, and ammonia in its atmosphere and crust ... creation of the complex organic molecules containing carbon, hydrogen, oxygen, nitrogen, potassium, and sulfur (CHONPS) that ...
    [ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/51/astrobiology2.html -- 15.5 Кб -- 02.10.2012
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    5. ASP: Star Science in the Autumn Sky
    ... and Neptune, is classified as a gas giant because its chief ingredient is hydrogen ... creates a crushing gravity so strong that the hydrogen is squeezed into liquid metal ...
    [ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/32/starscience5.html -- 10.6 Кб -- 02.10.2012
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    6. ASP: Biography of a Star: Our Sun's Birth, Life, and Death
    ... It is simply a huge ball of gas, mostly hydrogen, held together by its own powerful ... recently compared the weight of four atoms of hydrogen with that of one helium atom ...
    [ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/39/39.html -- 17.4 Кб -- 02.10.2012
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    7. ASP: A Good Definition of the Word "Planet": Mission Impossible?
    ... That is the source that powers hydrogen bombs, in which hydrogen nuclei are fused together to make helium nuclei, releasing energy. ...
    [ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/59/planetdefine3.html -- 10.4 Кб -- 02.10.2012
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    8. ASP: Biography of a Star: Our Sun's Birth, Life, and Death
    ... that the Sun will be able to fuse hydrogen into helium in its core at about the same ... What will happen when the Sun does run out of gas? (Hydrogen gas, that is.) ... the Sun will still have reserves of hydrogen in the layers that surround the core ...
    [ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/39/sun2.html -- 14.2 Кб -- 02.10.2012
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    9. ASP: The Biggest Bang of Them All
    ... Because the proton is the only component of the nucleus of the hydrogen atom, hydrogen was the first element created in the universe. ...
    [ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/37/universe2.html -- 13.4 Кб -- 02.10.2012
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    10. ASP: What Have We Learned About Halley's Comet?
    ... This hydrogen cloud forms when the Sun's energy hits the water vapor molecules freed from the comet's icy core and dissociates them into hydrogen and a special combination of the remaining oxygen and hydrogen atoms called a hydroxyl radical. ...
    [ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/06/06.html -- 16.6 Кб -- 02.10.2012
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