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.

                                2024 March 17
   [2]A blue spiral galaxy appears to be colliding -- and possibly moving
    through -- a dusty brown galaxy. Please see the explanation for more
                            detailed information.

                 NGC 7714: Starburst after Galaxy Collision
          Image Credit: [3]NASA, [4]ESA, [5]Hubble Legacy Archive;
                    Processing & Copyright: [6]Rudy Pohl

   Explanation: Is this galaxy jumping through a [7]giant ring of stars?
   Probably not. Although the precise [8]dynamics behind the featured
   image is yet unclear, what is clear is that the pictured galaxy, [9]NGC
   7714, has been stretched and distorted by a recent collision with a
   neighboring galaxy. This smaller neighbor, [10]NGC 7715, situated off
   to the left of the frame, is thought to have [11]charged right through
   [12]NGC 7714. Observations indicate that the golden [13]ring pictured
   is composed of millions of older Sun-like stars that are likely
   co-moving with the [14]interior bluer stars. In contrast, the bright
   center of [15]NGC 7714 appears to be undergoing a burst of new star
   formation. The [16]featured image was captured by the [17]Hubble Space
   Telescope. NGC 7714 is located about 130 million [18]light years away
   toward the constellation of the Two Fish ([19]Pisces). The
   [20]interactions between these galaxies likely started about 150
   million [21]years ago and should continue for several hundred million
   [22]years more, after which a [23]single central galaxy may result.

                     Tomorrow's picture: spiraling comet
     __________________________________________________________________

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    Authors & editors: [35]Robert Nemiroff ([36]MTU) & [37]Jerry Bonnell
                                 ([38]UMCP)
          NASA Official: Amber Straughn [39]Specific rights apply.
            [40]NASA Web Privacy, [41]Accessibility, [42]Notices;
                A service of: [43]ASD at [44]NASA / [45]GSFC,
                         [46]NASA Science Activation
                           & [47]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2403/Ngc7714_HubblePohl_2048.jpg
   3. https://www.nasa.gov/
   4. https://www.esa.int/About_Us/Welcome_to_ESA
   5. https://hla.stsci.edu/
   6. https://www.astrobin.com/users/Rudy_Pohl/
   7. https://apod.nasa.gov/apod/ap150419.html
   8. https://ui.adsabs.harvard.edu/abs/2003ApJ...589..157S/abstract
   9. https://www.youtube.com/watch?v=zMIBcXo-oXo
  10. http://faculty.etsu.edu/smithbj/captions/n7714cap.html
  11. https://live.staticflickr.com/5250/5228406300_27e05d74b7_b.jpg
  12. https://www.spacetelescope.org/news/heic1503/
  13. https://www.flickr.com/photos/rudypohl/32588157757/in/photostream/
  14. https://apod.nasa.gov/apod/ap221205.html
  15. https://en.wikipedia.org/wiki/NGC_7714
  16. https://www.astrobin.com/399094/J/?nc=user
  17. https://science.nasa.gov/mission/hubble/overview/about-hubble/
  18. https://exoplanets.nasa.gov/faq/26/what-is-a-light-year/
  19. https://en.wikipedia.org/wiki/Pisces_(constellation)
  20. https://apod.nasa.gov/apod/ap150212.html
  21. http://en.wikipedia.org/wiki/Timeline_of_natural_history
  22. http://en.wikipedia.org/wiki/Timeline_of_the_far_future
  23. https://apod.nasa.gov/apod/ap220606.html
  24. https://apod.nasa.gov/apod/ap240316.html
  25. https://apod.nasa.gov/apod/archivepix.html
  26. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  27. https://apod.nasa.gov/apod/lib/aptree.html
  28. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  29. https://apod.nasa.gov/apod/calendar/allyears.html
  30. https://apod.com/feed.rss
  31. https://apod.nasa.gov/apod/lib/edlinks.html
  32. https://apod.nasa.gov/apod/lib/about_apod.html
  33. https://asterisk.apod.com/discuss_apod.php?date=240317
  34. https://apod.nasa.gov/apod/ap240318.html
  35. http://www.phy.mtu.edu/faculty/Nemiroff.html
  36. http://www.phy.mtu.edu/
  37. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  38. http://www.astro.umd.edu/
  39. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  40. https://www.nasa.gov/about/highlights/HP_Privacy.html
  41. https://www.nasa.gov/general/accessibility/
  42. https://www.nasa.gov/privacy/
  43. https://astrophysics.gsfc.nasa.gov/
  44. https://www.nasa.gov/
  45. https://www.nasa.gov/centers/goddard/
  46. https://science.nasa.gov/learners
  47. http://www.mtu.edu/