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View Diary: Scientific American Gives Details on the Russian Meteor (277 comments)

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  •  Red giant phase is projected for 5.4 billion years (1+ / 0-)
    Recommended by:
    MichaelNY

    from now.  (Wikipedia, Red Giant, citing Sackmann, I. -J.; Boothroyd, A. I.; Kraemer, K. E. (1993). "Our Sun. III. Present and Future". The Astrophysical Journal 418: 457. )

    Homo sapiens sapiens has been around about one hundred thousand years, or about two one hundred thousandths of five billion years.

    Any guesses about whether we will cook up something sooner that might destroy us?

    I think I'll focus my energy on nearer-term threats, like:  global warming/climate change, mass species extinction, nuclear warfare, food shortages, water shortages, lack of proper sanitation, poverty, etc.

    "Who the hell is Grover Norquist, anyway?" - George H.W. Bush

    by rsmpdx on Sun Feb 17, 2013 at 02:07:17 PM PST

    [ Parent ]

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