﻿ 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 25 IFRAME: [2]https://youtube.com/embed/NqBfQeJqkfU?rel=0 Sonified: The Jellyfish Nebula Supernova Remnant Image Credit: X-ray (blue): [3]Chandra ([4]NASA) & [5]ROSAT ([6]ESA); Optical (red): [7]DSS ([8]NSF); Radio (green): [9]VLA ([10]NRAO, [11]NSF); Sonification: [12]NASA, [13]CXC, [14]SAO, [15]K. Arcand; SYSTEM Sounds: [16]M. Russo, [17]A. Santaguida) Explanation: What does a supernova remnant sound like? Although [18]sound is a compression wave in matter and does not carry into [19]empty space, [20]interpretive sound can help listeners appreciate and understand a visual image of a [21]supernova remnant in a new way. Recently, the Jellyfish Nebula ([22]IC 443) has been sonified quite creatively. In the [23]featured sound-enhanced video, when an imaginary line passes over a star, [24]the sound of a drop falling into water is played, a sound particularly relevant to the nebula's [25]aquatic namesake. Additionally, when the descending line crosses gas that glows red, a low [26]tone is played, while green sounds a middle tone, and blue produces a tone with a relatively high [27]pitch. Light from the supernova that created the [28]Jellyfish Nebula left approximately 35,000 years ago, when [29]humanity was in the [30]stone age. The nebula will slowly disperse over the next million years, although the [31]explosion also created a dense [32]neutron star which will remain indefinitely. Tomorrow's picture: comet tails __________________________________________________________________ [33]< | [34]Archive | [35]Submissions | [36]Index | [37]Search | [38]Calendar | [39]RSS | [40]Education | [41]About APOD | [42]Discuss | [43]> __________________________________________________________________ Authors & editors: [44]Robert Nemiroff ([45]MTU) & [46]Jerry Bonnell ([47]UMCP) NASA Official: Amber Straughn [48]Specific rights apply. [49]NASA Web Privacy, [50]Accessibility, [51]Notices; A service of: [52]ASD at [53]NASA / [54]GSFC, [55]NASA Science Activation & [56]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://youtube.com/embed/NqBfQeJqkfU?rel=0 3. https://chandra.harvard.edu/ 4. https://www.nasa.gov/ 5. https://en.wikipedia.org/wiki/ROSAT 6. https://www.esa.int/ 7. https://en.wikipedia.org/wiki/Digitized_Sky_Survey 8. https://www.nsf.gov/ 9. https://public.nrao.edu/visit/very-large-array/ 10. https://nrao.edu/ 11. https://nsf.gov/ 12. https://www.nasa.gov/ 13. https://cxc.harvard.edu/ 14. https://pweb.cfa.harvard.edu/about/about-smithsonian-astrophysical-observatory 15. https://pweb.cfa.harvard.edu/people/kimberly-k-arcand 16. https://www.astromattrusso.com/ 17. https://www.system-sounds.com/about-2/ 18. https://method-behind-the-music.com/mechanics/physics/ 19. https://apod.nasa.gov/apod/ap151206.html 20. https://apod.nasa.gov/apod/ap201216.html 21. https://imagine.gsfc.nasa.gov/science/objects/supernova_remnants.html 22. https://en.wikipedia.org/wiki/IC_443 23. https://chandra.harvard.edu/photo/2024/sonify8/ 24. https://plus.nasa.gov/video/listen-to-the-universe/ 25. https://en.wikipedia.org/wiki/Jellyfish 26. https://en.wikipedia.org/wiki/Musical_tone 27. https://en.wikipedia.org/wiki/Pitch_(music) 28. https://youtu.be/ysZK_tNeh38 29. https://apod.nasa.gov/apod/ap190818.html 30. https://farm5.static.flickr.com/4030/4261235446_1ab55b702b_o.png 31. https://youtu.be/wymMn-SmALY 32. https://science.nasa.gov/universe/neutron-stars-are-weird/ 33. https://apod.nasa.gov/apod/ap240324.html 34. https://apod.nasa.gov/apod/archivepix.html 35. https://apod.nasa.gov/apod/lib/apsubmit2015.html 36. https://apod.nasa.gov/apod/lib/aptree.html 37. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 38. https://apod.nasa.gov/apod/calendar/allyears.html 39. https://apod.com/feed.rss 40. https://apod.nasa.gov/apod/lib/edlinks.html 41. https://apod.nasa.gov/apod/lib/about_apod.html 42. https://asterisk.apod.com/discuss_apod.php?date=240325 43. https://apod.nasa.gov/apod/ap240326.html 44. http://www.phy.mtu.edu/faculty/Nemiroff.html 45. http://www.phy.mtu.edu/ 46. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 47. http://www.astro.umd.edu/ 48. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 49. https://www.nasa.gov/about/highlights/HP_Privacy.html 50. https://www.nasa.gov/general/accessibility/ 51. https://www.nasa.gov/privacy/ 52. https://astrophysics.gsfc.nasa.gov/ 53. https://www.nasa.gov/ 54. https://www.nasa.gov/centers/goddard/ 55. https://science.nasa.gov/learners 56. http://www.mtu.edu/