Astronomy Picture of the Day

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

                                2021 June 23

         IFRAME: [2]https://www.youtube.com/embed/BEckYJwCJno?rel=0

                   STARFORGE: A Star Formation Simulation
    Video & Text Credit: [3]Michael Y. Grudić ([4]Northwestern U.) [5]et
                      al., [6]STARFORGE Collaboration;
     Music: [7]Prelude, Op. 28, No. 4 in E Minor ([8]Frédéric Chopin)

   Explanation: How do stars form? Most form in [9]giant molecular clouds
   located in the [10]central disk of a galaxy. The process is started,
   influenced, and limited by the [11]stellar winds, [12]jets, [13]high
   energy starlight, and [14]supernova explosions of previously existing
   stars. The [15]featured video shows these complex interactions as
   computed by the [16]STARFORGE simulation of a gas cloud 20,000 times
   the mass of [17]our Sun. In the [18]time-lapse visualization, lighter
   regions indicate denser gas, color encodes the gas speed (purple is
   slow, orange is fast), while dots indicate the positions of newly
   [19]formed stars. As [20]the video begins, a gas cloud spanning about
   50 [21]light years begins to condense under its own gravity. Within 2
   million years, the first stars form, while newly formed massive stars
   are seen to expel [22]impressive [23]jets. The simulation is [24]frozen
   after 4.3 million years, and the [25]volume then rotated to gain a
   three-dimensional perspective. Much remains unknown about [26]star
   formation, including [27]the effect of the jets in limiting the masses
   of subsequently formed stars.

                 Portal Universe: [28]Random APOD Generator
                       Tomorrow's picture: open space
     __________________________________________________________________

      [29]< | [30]Archive | [31]Submissions | [32]Index | [33]Search |
   [34]Calendar | [35]RSS | [36]Education | [37]About APOD | [38]Discuss |
                                    [39]>
     __________________________________________________________________

    Authors & editors: [40]Robert Nemiroff ([41]MTU) & [42]Jerry Bonnell
                                 ([43]UMCP)
          NASA Official: Phillip Newman [44]Specific rights apply.
              [45]NASA Web Privacy Policy and Important Notices
                A service of: [46]ASD at [47]NASA / [48]GSFC
                           & [49]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://www.youtube.com/embed/BEckYJwCJno?rel=0
   3. https://ciera.northwestern.edu/directory/mike-grudic/
   4. https://ciera.northwestern.edu/
   5. http://www.starforge.space/team.html
   6. http://www.starforge.space/whatis.html
   7. https://en.wikipedia.org/wiki/Prelude,_Op._28,_No._4_(Chopin)
   8. https://en.wikipedia.org/wiki/Frédéric_Chopin
   9. https://apod.nasa.gov/apod/ap210502.html
  10. https://astrobites.org/2013/04/17/the-whirlpool-galaxy-like-youve-never-seen-it-before/
  11. https://astronomy.swin.edu.au/cosmos/S/Stellar+Winds
  12. https://astronomy.swin.edu.au/cosmos/S/stellar+jets
  13. https://en.wikipedia.org/wiki/Ionizing_radiation
  14. https://apod.nasa.gov/apod/ap210118.html
  15. https://youtu.be/Aehqb-vDV_w
  16. http://www.starforge.space/
  17. https://solarsystem.nasa.gov/solar-system/sun/overview/
  18. http://www.starforge.space/movies.html
  19. https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve
  20. https://youtu.be/BEckYJwCJno
  21. https://spaceplace.nasa.gov/light-year/en/
  22. https://img.huffingtonpost.com/asset/5bad12683c000032000b0e42.jpeg
  23. https://apod.nasa.gov/apod/ap210622.html
  24. https://apod.nasa.gov/apod/ap181218.html
  25. https://youtu.be/QSivvdIyeG4
  26. https://en.wikipedia.org/wiki/Star_formation
  27. https://arxiv.org/abs/2010.11249
  28. https://apod.nasa.gov/apod/random_apod.html
  29. https://apod.nasa.gov/apod/ap210622.html
  30. https://apod.nasa.gov/apod/archivepix.html
  31. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  32. https://apod.nasa.gov/apod/lib/aptree.html
  33. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  34. https://apod.nasa.gov/apod/calendar/allyears.html
  35. https://apod.nasa.gov/apod.rss
  36. https://apod.nasa.gov/apod/lib/edlinks.html
  37. https://apod.nasa.gov/apod/lib/about_apod.html
  38. http://asterisk.apod.com/discuss_apod.php?date=210623
  39. https://apod.nasa.gov/apod/ap210624.html
  40. http://www.phy.mtu.edu/faculty/Nemiroff.html
  41. http://www.phy.mtu.edu/
  42. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  43. http://www.astro.umd.edu/
  44. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  45. https://www.nasa.gov/about/highlights/HP_Privacy.html
  46. https://astrophysics.gsfc.nasa.gov/
  47. https://www.nasa.gov/
  48. https://www.nasa.gov/centers/goddard/
  49. http://www.mtu.edu/