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.

                                2025 April 9
     [2]A dark starfield is dominated by a red cone-like nebula with its
   base on the bottom right and extending diagonally through the image. At
      the peak of the cone toward the upper left is a background spiral
      galaxy. Please see the explanation for more detailed information.

                      HH 49: Interstellar Jet from Webb
          Image Credit: [3]NASA, [4]ESA, [5]CSA, [6]STScI, [7]JWST

   Explanation: What's at the tip of this interstellar jet? First let's
   consider the jet: it is being expelled by a [8]star system just forming
   and is cataloged as [9]Herbig-Haro 49 (HH 49). The [10]star system
   expelling this jet is [11]not visible -- it is off to the lower right.
   The complex conical structure [12]featured in this infrared image by
   the [13]James Webb Space Telescope also includes another jet cataloged
   as HH 50. The fast jet particles impact the [14]surrounding
   interstellar gas and form shock waves that glow prominently in
   [15]infrared light -- shown here as reddish-brown ridges. This [16]JWST
   image also resolved the mystery of the unusual object at [17]HH 49's
   tip: it is a [18]spiral galaxy far in the distance. The blue center is
   therefore not one star but many, and the surrounding circular rings are
   actually [19]spiral arms.

             Jump Around the Universe: [20]Random APOD Generator
                       Tomorrow's picture: open space
     __________________________________________________________________

      [21]< | [22]Archive | [23]Submissions | [24]Index | [25]Search |
   [26]Calendar | [27]RSS | [28]Education | [29]About APOD | [30]Discuss |
                                    [31]>
     __________________________________________________________________

    Authors & editors: [32]Robert Nemiroff ([33]MTU) & [34]Jerry Bonnell
                                 ([35]UMCP)
          NASA Official: Amber Straughn [36]Specific rights apply.
            [37]NASA Web Privacy, [38]Accessibility, [39]Notices;
                A service of: [40]ASD at [41]NASA / [42]GSFC,
                         [43]NASA Science Activation
                           & [44]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2504/HH49_Webb_4152.jpg
   3. https://www.nasa.gov/
   4. https://www.esa.int/
   5. https://www.asc-csa.gc.ca/eng/
   6. https://www.stsci.edu/
   7. https://science.nasa.gov/mission/webb/
   8. https://ui.adsabs.harvard.edu/abs/2006AJ....132.1923B/abstract
   9. https://en.wikipedia.org/wiki/Herbig–Haro_object
  10. https://www.thebrighterside.news/post/nasas-webb-telescope-reveals-cosmic-tornado-in-action/
  11. https://www.reddit.com/media?url=https://i.redd.it/h21s6uzy9qi11.jpg
  12. https://webbtelescope.org/contents/media/images/2025/112/01JNGTQ49XY0NHG1Y31RAGYH1Y
  13. https://science.nasa.gov/mission/webb/
  14. https://youtu.be/J7tPEOVGKkw
  15. https://science.nasa.gov/ems/07_infraredwaves/
  16. https://youtu.be/U_GviglW954
  17. https://apod.nasa.gov/apod/ap070811.html
  18. https://apod.nasa.gov/apod/ap240101.html
  19. https://en.wikipedia.org/wiki/Spiral_arm
  20. https://apod.nasa.gov/apod/random_apod.html
  21. https://apod.nasa.gov/apod/ap250408.html
  22. https://apod.nasa.gov/apod/archivepix.html
  23. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  24. https://apod.nasa.gov/apod/lib/aptree.html
  25. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  26. https://apod.nasa.gov/apod/calendar/allyears.html
  27. https://apod.com/feed.rss
  28. https://apod.nasa.gov/apod/lib/edlinks.html
  29. https://apod.nasa.gov/apod/lib/about_apod.html
  30. https://asterisk.apod.com/discuss_apod.php?date=250409
  31. https://apod.nasa.gov/apod/ap250410.html
  32. http://www.phy.mtu.edu/faculty/Nemiroff.html
  33. http://www.phy.mtu.edu/
  34. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  35. http://www.astro.umd.edu/
  36. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  37. https://www.nasa.gov/about/highlights/HP_Privacy.html
  38. https://www.nasa.gov/general/accessibility/
  39. https://www.nasa.gov/privacy/
  40. https://astrophysics.gsfc.nasa.gov/
  41. https://www.nasa.gov/
  42. https://www.nasa.gov/centers/goddard/
  43. https://science.nasa.gov/learners
  44. http://www.mtu.edu/