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.

                                2026 April 28
    [2]A star field with a few red wisps surrounds a nebula that has many
   several dark components each of which has a dark head closer to the top
    of the image. A red glow is brightest near the top of each component.
          Please see the explanation for more detailed information.

                          CG 30: Cometary Globules
                Image Credit & Copyright: [3]Marcelo Salemme

   Explanation: They're like mountain peaks, but they are forming stars.
   Bright-rimmed, flowing shapes gather near the center of this rich
   starfield toward the borders of the nautical southern [4]constellations
   Puppis and Vela. Composed of interstellar gas and [5]dust, the grouping
   of light-year sized cometary globules is about 1300 [6]light-years
   distant. Energetic [7]ultraviolet light from nearby hot stars [8]has
   molded the globules and ionized their bright rims. [9]The globules also
   stream away from the [10]Vela supernova remnant which may have
   influenced their swept-back shapes. Within them, cores of cold gas and
   [11]dust are likely [12]collapsing to form low mass stars whose
   formation will ultimately cause the [13]globules to disperse. In fact,
   cometary globule CG 30 (upper right in the group) sports a small
   reddish glow inside its head, [14]a telltale sign of energetic jets
   from a [15]star in the early stages [16]of formation.

                       Tomorrow's picture: open space
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    Authors & editors: [28]Robert Nemiroff ([29]MTU) & [30]Jerry Bonnell
                                 ([31]UMCP)
          NASA Official: Amber Straughn [32]Specific rights apply.
            [33]NASA Web Privacy, [34]Accessibility, [35]Notices;
                A service of: [36]ASD at [37]NASA / [38]GSFC,
                         [39]NASA Science Activation
                           & [40]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2604/CG30Globules_Salamme_2772.jpg
   3. https://www.astromgs.com/
   4. http://en.wikipedia.org/wiki/Argo_Navis
   5. https://science.nasa.gov/universe/dust-in-the-stellar-wind-a-cosmological-primer/
   6. https://spaceplace.nasa.gov/light-year/en/
   7. https://science.nasa.gov/ems/10_ultravioletwaves/
   8. https://apod.nasa.gov/apod/ap071215.html
   9. http://arxiv.org/abs/astro-ph/0502285
  10. https://apod.nasa.gov/apod/ap190110.html
  11. https://astronomy.swin.edu.au/cosmos/d/Dust+Grain
  12. https://pbs.twimg.com/media/BUCOEePIcAAht9h.jpg
  13. https://apod.nasa.gov/apod/ap230104.html
  14. https://ui.adsabs.harvard.edu/abs/1990MNRAS.242..419S/abstract
  15. https://science.nasa.gov/universe/stars/
  16. http://en.wikipedia.org/wiki/Star_formation
  17. https://apod.nasa.gov/apod/ap260427.html
  18. https://apod.nasa.gov/apod/archivepix.html
  19. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  20. https://apod.nasa.gov/apod/lib/aptree.html
  21. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  22. https://apod.nasa.gov/apod/calendar/allyears.html
  23. https://apod.com/feed.rss
  24. https://apod.nasa.gov/apod/lib/edlinks.html
  25. https://apod.nasa.gov/apod/lib/about_apod.html
  26. https://asterisk.apod.com/discuss_apod.php?date=260428
  27. https://apod.nasa.gov/apod/ap260429.html
  28. http://www.phy.mtu.edu/faculty/Nemiroff.html
  29. http://www.phy.mtu.edu/
  30. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  31. http://www.astro.umd.edu/
  32. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  33. https://www.nasa.gov/about/highlights/HP_Privacy.html
  34. https://www.nasa.gov/general/accessibility/
  35. https://www.nasa.gov/privacy/
  36. https://astrophysics.gsfc.nasa.gov/
  37. https://www.nasa.gov/
  38. https://www.nasa.gov/centers/goddard/
  39. https://science.nasa.gov/learners
  40. http://www.mtu.edu/