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. 2020 March 4 [2]See Explanation. Clicking on the picture will download the highest resolution version available. The Slow Dance of Galaxies NGC 5394 and 5395 Image Credit: [3]Gemini, [4]NSF, [5]OIR Lab, [6]AURA; Text: [7]Ryan Tanner ([8]NASA/[9]USRA) Explanation: If you [10]like slow dances, then this may be one for you. A single turn in this dance takes [11]several hundred million years. Two galaxies, NGC 5394 and NGC 5395, slowly whirl about each other in a [12]gravitational interaction that sets off a flourish of sparks in the form of new [13]stars. The featured image, taken with the [14]Gemini North 8-meter telescope on [15]Maunakea, [16]Hawaii, [17]USA, combines [18]four different colors. Emission from [19]hydrogen gas, colored red, marks [20]stellar nurseries where new stars drive the evolution of the [21]galaxies. Also visible are dark [22]dust lanes that mark gas that will eventually become [23]stellar nurseries. If you look carefully you will see [24]many more galaxies in [25]the background, some involved in their own slow [26]cosmic dances. APOD across world languages: [27]Arabic, [28]Catalan, [29]Chinese (Beijing), [30]Chinese (Taiwan), [31]Croatian, [32]Czech, [33]Dutch, [34]Farsi, [35]French, [36]French, [37]German, [38]Hebrew, [39]Indonesian, [40]Japanese, [41]Korean, [42]Montenegrin, [43]Polish, [44]Russian, [45]Serbian, [46]Slovenian, [47]Spanish and [48]Ukrainian Tomorrow's picture: open space __________________________________________________________________ [49]< | [50]Archive | [51]Submissions | [52]Index | [53]Search | [54]Calendar | [55]RSS | [56]Education | [57]About APOD | [58]Discuss | [59]> __________________________________________________________________ Authors & editors: [60]Robert Nemiroff ([61]MTU) & [62]Jerry Bonnell ([63]UMCP) NASA Official: Phillip Newman [64]Specific rights apply. [65]NASA Web Privacy Policy and Important Notices A service of: [66]ASD at [67]NASA / [68]GSFC & [69]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2003/NGC5394n5_gemini_1886.jpg 3. https://www.gemini.edu/ 4. https://www.nsf.gov/ 5. https://www.aura-astronomy.org/centers/nsfs-oir-lab/ 6. https://www.aura-astronomy.org/ 7. https://sciences.gsfc.nasa.gov/sed/bio/ryan.tanner 8. https://www.nasa.gov/ 9. https://www.usra.edu/ 10. https://duetdancestudio.com/blog-dance-lessons-chicago/2018/7/19/how-to-slow-dance-6-easy-steps-with-video-instruction 11. https://www.youtube.com/watch?v=431lGpe3o8U 12. https://apod.nasa.gov/apod/ap130514.html 13. https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve 14. http://www.ifa.hawaii.edu/images/aerial-tour/gemini.html 15. https://apod.nasa.gov/apod/ap150503.html 16. https://en.wikipedia.org/wiki/Hawaii 17. https://en.wikipedia.org/wiki/United_States 18. http://www.gemini.edu/sciops/instruments/gmos/imaging/filters 19. https://ui.adsabs.harvard.edu/abs/1983ApJ...272...54K/abstract 20. https://www.bbc.com/news/science-environment-51021704 21. https://apod.nasa.gov/apod/ap170510.html 22. https://ned.ipac.caltech.edu/level5/Sept11/Buta/Buta8.html 23. https://apod.nasa.gov/apod/ap121211.html 24. http://www.worldswithoutend.com/ 25. https://apod.nasa.gov/apod/ap180305.html 26. https://apod.nasa.gov/apod/ap181010.html 27. http://www.apodar.com/ 28. http://www.apod.cat/ 29. http://www.bjp.org.cn/apod/today.html 30. http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/apod.html 31. http://www.apod.rs/Croatia.html 32. http://www.astro.cz/apod/ 33. http://www.apod.nl/ 34. http://www.skypix.org/apod/ 35. http://www.cidehom.com/apod.php 36. https://www.apod.tv/ 37. http://www.starobserver.org/ 38. http://www.astronomia2009.org.il/info/apod/apod.htm 39. http://apod.infoastronomy.org/ 40. http://home.u05.itscom.net/apodjpn/apodj/apodj0.htm 41. http://wouldyoulike.org/apod/ 42. http://www.apod.rs/Montenegro.html 43. http://apod.pl/apod/ 44. http://www.astronet.ru/db/apod.html 45. http://www.apod.rs/ 46. http://apod.fmf.uni-lj.si/ 47. http://observatorio.info/ 48. http://astronomy.pp.ua/ 49. https://apod.nasa.gov/apod/ap200303.html 50. https://apod.nasa.gov/apod/archivepix.html 51. https://apod.nasa.gov/apod/lib/apsubmit2015.html 52. https://apod.nasa.gov/apod/lib/aptree.html 53. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 54. https://apod.nasa.gov/apod/calendar/allyears.html 55. https://apod.nasa.gov/apod.rss 56. https://apod.nasa.gov/apod/lib/edlinks.html 57. https://apod.nasa.gov/apod/lib/about_apod.html 58. http://asterisk.apod.com/discuss_apod.php?date=200304 59. https://apod.nasa.gov/apod/ap200305.html 60. http://www.phy.mtu.edu/faculty/Nemiroff.html 61. http://www.phy.mtu.edu/ 62. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 63. http://www.astro.umd.edu/ 64. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 65. https://www.nasa.gov/about/highlights/HP_Privacy.html 66. https://astrophysics.gsfc.nasa.gov/ 67. https://www.nasa.gov/ 68. https://www.nasa.gov/centers/goddard/ 69. http://www.mtu.edu/