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 October 28
   [2]A night sky is shown with a bright red band running overhead. Above
   the red band is a diffuse red glow. A path through a grassy filed is in
   the foreground with a path going out toward the horizon. Please see the
                 explanation for more detailed information.

                     STEVE: A Glowing River over France
                 Credit & Copyright: [3]Louis LEROUX-GÉRÉ

   Explanation: Sometimes a river of hot gas flows over your head. In this
   case the river created a Strong Thermal Emission Velocity Enhancement
   ([4]STEVE) that glowed bright red, white, and pink. Details of [5]how
   STEVEs work remain a topic of research, but recent evidence holds that
   their glow results from a [6]fast-moving river of hot ions flowing over
   a hundred kilometers up in the [7]Earth's atmosphere: the
   [8]ionosphere. The more expansive dull red glow might be related to the
   flowing [9]STEVE, but alternatively might be a [10]Stable Auroral Red
   (SAR) arc, a [11]more general heat-related glow. The [12]featured
   picture, taken earlier this month in [13]Côte d'Opale, [14]France, is a
   wide-angle digital composite made as the [15]STEVE arc formed nearly
   overhead. Although the [16]apparition lasted only a few minutes, this
   was long enough for the [17]quick-thinking astrophotographer to get in
   the picture -- can you find him?

                       Tomorrow's picture: webb stars
     __________________________________________________________________

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    Authors & editors: [29]Robert Nemiroff ([30]MTU) & [31]Jerry Bonnell
                                 ([32]UMCP)
          NASA Official: Amber Straughn [33]Specific rights apply.
            [34]NASA Web Privacy, [35]Accessibility, [36]Notices;
                A service of: [37]ASD at [38]NASA / [39]GSFC,
                         [40]NASA Science Activation
                           & [41]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2410/SteveFrance_leroux_2160.jpg
   3. https://www.instagram.com/lrx.photo
   4. https://en.wikipedia.org/wiki/STEVE
   5. https://ui.adsabs.harvard.edu/abs/2018GeoRL..45.7968G/abstract
   6. https://en.wikipedia.org/wiki/STEVE#Research_into_cause
   7. https://science.nasa.gov/earth/earth-atmosphere/earths-atmosphere-a-multi-layered-cake/
   8. https://science.nasa.gov/earth/10-things-to-know-about-the-ionosphere/
   9. https://apod.nasa.gov/apod/ap210505.html
  10. https://spaceweatherarchive.com/2021/11/22/3308/
  11. https://apod.nasa.gov/apod/ap240103.html
  12. https://www.instagram.com/p/DBKEFJlMLPo/
  13. https://youtu.be/66ATFjFDjoY?t=129
  14. https://en.wikipedia.org/wiki/France
  15. https://apod.nasa.gov/apod/ap171014.html
  16. https://apod.nasa.gov/apod/ap231022.html
  17. https://static2.bigstockphoto.com/0/7/4/large1500/470325001.jpg
  18. https://apod.nasa.gov/apod/ap241027.html
  19. https://apod.nasa.gov/apod/archivepix.html
  20. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  21. https://apod.nasa.gov/apod/lib/aptree.html
  22. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  23. https://apod.nasa.gov/apod/calendar/allyears.html
  24. https://apod.com/feed.rss
  25. https://apod.nasa.gov/apod/lib/edlinks.html
  26. https://apod.nasa.gov/apod/lib/about_apod.html
  27. https://asterisk.apod.com/discuss_apod.php?date=241028
  28. https://apod.nasa.gov/apod/ap241029.html
  29. http://www.phy.mtu.edu/faculty/Nemiroff.html
  30. http://www.phy.mtu.edu/
  31. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  32. http://www.astro.umd.edu/
  33. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  34. https://www.nasa.gov/about/highlights/HP_Privacy.html
  35. https://www.nasa.gov/general/accessibility/
  36. https://www.nasa.gov/privacy/
  37. https://astrophysics.gsfc.nasa.gov/
  38. https://www.nasa.gov/
  39. https://www.nasa.gov/centers/goddard/
  40. https://science.nasa.gov/learners
  41. http://www.mtu.edu/