The Space Stuff thread


  1. Posts : 2,535
    Win 11 x 64 Home on PC and Win 11 Home x 64 on Surface 9
       #1651

    If you want to know all about every space shot, successful or not, read this ebook, fascinating:

    Beyond Earth: A Chronicle of Deep Space Exploration | NASA

    Its amazing how many failures USSR had, and they changed many shot titles to disguise their rubbish. Most rubbish on orbit about earth is Soviet.
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  3. Posts : 1,788
    Win 10
       #1653

    Our Sun is too small to nova. It will go into a red phase where it expands out to our orbit, in a around a billion years, and then shrink back into dwarf stage. Either white or red M class.
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  4. Posts : 1,800
    10 Home 64-bit | v22H2 | Build - 19045.3930
       #1654

    In some discussions it was postulated that as the Sun starts its red giant phase and the pressure wave neared Earth it would push the Earth out of its orbit.

    It is calculated that the expanding Sun will grow large enough to encompass the orbit’s of Mercury, Venus, and maybe even Earth. Even if the Earth were to survive being consumed, its new proximity to the the intense heat of this red sun would scorch our planet and make it completely impossible for life to survive. However, astronomers have noted that as the Sun expands, the orbit of the planet’s is likely to change as well.

    When the Sun reaches this late stage in its stellar evolution, it will lose a tremendous amount of mass through powerful stellar winds. Basically, as it grows, it loses mass, causing the planets to spiral outwards. So the question is, will the expanding Sun overtake the planets spiraling outwards, or will Earth (and maybe even Venus) escape its grasp?

    Universe Today
    Either way our collective gooses will be cooked....
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  5. Posts : 2,177
    Windows 10 Pro 64-bit v22H2
       #1655

    We should worry more about a coronal mass ejection (CME). If we were hit by a big CME our electrical infrastructure might get cooked!

    The Carrington Event was the most intense geomagnetic storm in recorded history, occurring on 1–2 September 1859 during solar cycle 10. It created strong auroral displays that were reported globally and caused sparking and fire in multiple telegraph systems. The geomagnetic storm was most likely the result of a coronal mass ejection (CME) from the Sun colliding with Earth's magnetosphere.
    A geomagnetic storm of this magnitude occurring today would cause widespread electrical disruptions, blackouts, and damage due to extended outages of the electrical grid.
    In June 2013, a joint venture from researchers at Lloyd's of London and Atmospheric and Environmental Research (AER) in the United States used data from the Carrington Event to estimate the cost of a similar event in the present to the U.S. alone at US$0.6–2.6 trillion,[3] which at the time equated to roughly 3.6% to 15.5% of annual GDP.

    Carrington Event
    Carrington Event - Wikipedia

    A coronal mass ejection (CME) is a significant release of plasma and accompanying magnetic field from the Sun's corona into the solar wind. CMEs are often associated with solar flares and other forms of solar activity, but a broadly accepted theoretical understanding of these relationships has not been established.
    According to a report published in 2012 by physicist Pete Riley of Predictive Science Inc., the chance of Earth being hit by a Carrington-class storm between 2012 and 2022 is 12%.

    Coronal mass ejection
    Coronal mass ejection - Wikipedia
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  6. Posts : 1,800
    10 Home 64-bit | v22H2 | Build - 19045.3930
       #1656

    MisterEd said:
    We should worry more about a coronal mass ejection (CME).
    I agree. We will be long gone before 'Ol Sol goes red.
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  7. Posts : 42,763
    Windows 10 Home 22H2
       #1657
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  9. Posts : 42,763
    Windows 10 Home 22H2
       #1659



    A Guy
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  10. Posts : 42,763
    Windows 10 Home 22H2
       #1660
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