            APOD: 2017 October 24 - Where Your Elements Came From

                         Astronomy Picture of the Day

    Discover the cosmos! [1] Each day a different image or photograph of our
 fascinating universe is featured, along with a brief explanation written by a
                           professional astronomer.

                                2017 October 24
                                      [2]
                        Where Your Elements Came From
    Image Credit & License [3] : Wikipedia [4] : Cmglee [5] ; Data: Jennifer
                            Johnson [6] (OSU [7] )

Explanation: The hydrogen in your body, present in every molecule of water,
came from the Big Bang [8] . There are no other appreciable [9]  sources of
hydrogen [10]  in the universe. The carbon [11]  in your body was made by
nuclear fusion [12] in the interior of stars, as was the oxygen [13] . Much of
the iron in your body was made during supernova [14] s of stars that occurred
long ago and far away. The gold [15]  in your jewelry was likely made from
neutron stars during collisions that may have been visible as short-duration
gamma-ray bursts [16] or gravitational wave events [17] . Elements like
phosphorus and copper are present in our bodies [18]  in only small amounts
but are essential to the functioning [19]  of all known life [20] . The
featured periodic table [21]  is color coded [22]  to indicate humanity [23]
's best guess as to the nuclear origin [24]  of all known elements. The sites
of nuclear creation [25] of some elements, such as copper [26] , are not
really well known and are continuing topics of observational and computational
research.

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                  Tomorrow's picture: meteors streaming [31]

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    Authors & editors: Robert Nemiroff [43] (MTU [44] ) & Jerry Bonnell [45]
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Site notes:
  [1] archivepix.html
  [2] image/1710/Nucleosynthesis2_WikipediaCmglee_2000.jpg
  [3] https://creativecommons.org/licenses/by-sa/3.0/
  [4] https://en.wikipedia.org/wiki/Wikipedia
  [5] https://commons.wikimedia.org/wiki/User:Cmglee
  [6] https://astronomy.osu.edu/people/johnson.3064
  [7] https://astronomy.osu.edu/
  [8] http://map.gsfc.nasa.gov/universe/bb_tests_ele.html
  [9]
http://www.sciencealert.com/
lhc-produces-primordial-soup-of-the-universe-using-less-particles-than-thought-
possible
  [10] http://periodic.lanl.gov/1.shtml
  [11] https://en.wikipedia.org/wiki/Carbon#Formation_in_stars
  [12] https://en.wikipedia.org/wiki/Nuclear_fusion
  [13] https://en.wikipedia.org/wiki/Oxygen#Isotopes_and_stellar_origin
  [14] https://heasarc.gsfc.nasa.gov/docs/snr.html
  [15] ap171015.html
  [16] http://imagine.gsfc.nasa.gov/science/objects/bursts1.html
  [17] ap171016.html
  [18]
http://www.goodreads.com/quotes/
144310-the-nitrogen-in-our-dna-the-calcium-in-our-teeth
  [19]
http://sciencelearn.org.nz/Contexts/Just-Elemental/Science-Ideas-and-Concepts/
The-essential-elements
  [20] http://images.csmonitor.com/csm/2010/02/02_65.jpg
  [21]
https://commons.wikimedia.org/wiki/File:Nucleosynthesis_periodic_table.svg
  [22]
https://i.pinimg.com/originals/61/d5/9a/61d59a79540529bd9f33f5b523f2be91.jpg
  [23] ap100725.html
  [24] https://en.wikipedia.org/wiki/Nucleosynthesis
  [25] https://www.youtube.com/watch?v=7EpcUohHees
  [26] http://adsabs.harvard.edu/abs/2016A%26A...585A.102Y
  [27] https://www.facebook.com/AstronomyPictureOfTheDay
  [28] https://plus.google.com/u/1/+AstronomyPictureOfTheDay
  [29] https://www.instagram.com/astronomypicturesdaily/
  [30] http://twitter.com/apod/
  [31] ap171025.html
  [32] ap171023.html
  [33] archivepix.html
  [34] lib/apsubmit2015.html
  [35] lib/aptree.html
  [36] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [37] calendar/allyears.html
  [38] /apod.rss
  [39] lib/edlinks.html
  [40] lib/about_apod.html
  [41] http://asterisk.apod.com/discuss_apod.php?date=171024
  [42] ap171025.html
  [43] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [44] http://www.phy.mtu.edu/
  [45] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [46] http://www.astro.umd.edu/
  [47] lib/about_apod.html#srapply
  [48] https://www.nasa.gov/about/highlights/HP_Privacy.html
  [49] https://astrophysics.gsfc.nasa.gov/
  [50] https://www.nasa.gov/
  [51] https://www.nasa.gov/centers/goddard/
  [52] http://www.mtu.edu/
