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 May 28

         IFRAME: [2]https://www.youtube.com/embed/yt7uwWzSTw0?rel=0

                Solar X Flare as Famous Active Region Returns
            Video Credit: [3]NASA, [4]Solar Dynamics Observatory

   Explanation: It's back. The famous active region on the Sun that
   created [5]auroras visible around the Earth [6]earlier this month has
   survived its rotation around the far side of the Sun -- and returned.
   Yesterday, as it was beginning to reappear on the Earth-facing side,
   the region formerly labeled [7]AR 3664 threw another [8]major solar
   flare, again in the highest-energy [9]X-class range. The featured video
   shows the emerging [10]active region on the lower left, as it was
   captured by NASA's Earth-orbiting [11]Solar Dynamics Observatory
   yesterday in [12]ultraviolet light. The video is a time-lapse of the
   entire [13]Sun rotating over 24 hours. Watch the lower-left region
   carefully at about the 2-second mark to see the powerful [14]flare
   burst out. The energetic particles from that flare and [15]associated
   CME are not expected to directly impact the Earth and trigger
   impressive auroras, but scientists will keep a [16]close watch on this
   unusually [17]active region over the next two weeks, as it faces the
   Earth, to see what develops.

                     Tomorrow's picture: stairway to …
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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://www.youtube.com/embed/yt7uwWzSTw0?rel=0
   3. https://www.nasa.gov/
   4. https://sdo.gsfc.nasa.gov/mission/
   5. https://www.facebook.com/media/set/?set=a.431368006258449&type=3
   6. https://en.wikipedia.org/wiki/May_2024_solar_storms
   7. https://apod.nasa.gov/apod/ap240511.html
   8. https://www.swpc.noaa.gov/news/x28-flare-old-region-3664
   9. https://svs.gsfc.nasa.gov/10109/
  10. https://science.nasa.gov/get-involved/citizen-science/be-a-solar-active-region-spotter/
  11. https://sdo.gsfc.nasa.gov/mission/
  12. https://science.nasa.gov/ems/10_ultravioletwaves/
  13. https://apod.nasa.gov/apod/ap200819.html
  14. https://science.nasa.gov/science-research/heliophysics/space-weather/solar-flares/what-is-a-solar-flare/
  15. https://spaceweather.com/images2024/27may24/farsidecme.gif
  16. https://www.mediastorehouse.com/p/617/tabby-kitten-looking-pot-plant-9446207.jpg.webp
  17. https://spaceweather.com/archive.php?view=1&day=28&month=05&year=2024
  18. https://apod.nasa.gov/apod/ap240527.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=240528
  28. https://apod.nasa.gov/apod/ap240529.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/