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. 2022 November 30 [2]See Explanation. Clicking on the picture will download the highest resolution version available. The Light, the Dark, and the Dusty Image Credit & [3]Copyright: [4]Anthony Quintile Explanation: [5]This colorful skyscape spans about four full moons across nebula rich starfields along the plane of our Milky Way Galaxy in the royal northern constellation [6]Cepheus. Near the edge of the region's massive molecular cloud some 2,400 light-years away, bright reddish emission region [7]Sharpless (Sh) 155 is at the center of the frame, also known as the [8]Cave Nebula. About 10 light-years across the cosmic cave's bright walls of gas are ionized by ultraviolet light from the hot young stars around it. Dusty reflection nebulae, [9]like vdB 155 to the right, and dense obscuring clouds of dust also abound on the interstellar canvas. Astronomical [10]explorations have revealed other [11]dramatic signs of star formation, including the bright reddish fleck of [12]Herbig-Haro (HH) 168. Below and right of center, the Herbig-Haro object emission is generated by energetic jets from a [13]newborn star. Tomorrow's picture: supernumerary __________________________________________________________________ [14]< | [15]Archive | [16]Submissions | [17]Index | [18]Search | [19]Calendar | [20]RSS | [21]Education | [22]About APOD | [23]Discuss | [24]> __________________________________________________________________ Authors & editors: [25]Robert Nemiroff ([26]MTU) & [27]Jerry Bonnell ([28]UMCP) NASA Official: Phillip Newman [29]Specific rights apply. [30]NASA Web Privacy Policy and Important Notices A service of: [31]ASD at [32]NASA / [33]GSFC, [34]NASA Science Activation & [35]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2211/Cave_Copyright_APOD.png 3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 4. https://www.astrobin.com/users/AnthonyQ/ 5. https://www.astrobin.com/y23yjl/F/ 6. http://earthsky.org/brightest-stars/star-errai-future-north-star 7. http://adsabs.harvard.edu/abs/1953ApJ...118..362S 8. https://apod.nasa.gov/apod/ap170323.html 9. http://adsabs.harvard.edu/abs/1966AJ.....71..990V 10. https://arxiv.org/abs/0909.5326 11. https://hubblesite.org/hubble-30th-anniversary/hubbles-exciting-universe/beholding-the-birth-and-death-of-stars 12. http://en.wikipedia.org/wiki/Herbig%E2%80%93Haro_object 13. https://apod.nasa.gov/apod/ap221118.html 14. https://apod.nasa.gov/apod/ap221129.html 15. https://apod.nasa.gov/apod/archivepix.html 16. https://apod.nasa.gov/apod/lib/apsubmit2015.html 17. https://apod.nasa.gov/apod/lib/aptree.html 18. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 19. https://apod.nasa.gov/apod/calendar/allyears.html 20. https://apod.nasa.gov/apod.rss 21. https://apod.nasa.gov/apod/lib/edlinks.html 22. https://apod.nasa.gov/apod/lib/about_apod.html 23. http://asterisk.apod.com/discuss_apod.php?date=221130 24. https://apod.nasa.gov/apod/ap221201.html 25. http://www.phy.mtu.edu/faculty/Nemiroff.html 26. http://www.phy.mtu.edu/ 27. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 28. http://www.astro.umd.edu/ 29. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 30. https://www.nasa.gov/about/highlights/HP_Privacy.html 31. https://astrophysics.gsfc.nasa.gov/ 32. https://www.nasa.gov/ 33. https://www.nasa.gov/centers/goddard/ 34. https://science.nasa.gov/learners 35. http://www.mtu.edu/