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. 2023 January 15 [2]A messy array of colorful filaments is shown in front of a field of stars. Please see the explanation for more detailed information. M1: The Crab Nebula from Hubble Image Credit: [3]NASA, [4]ESA, [5]Hubble, J. Hester, A. Loll ([6]ASU) Explanation: This is the mess that is left when a star explodes. The [7]Crab Nebula, the result of a [8]supernova seen in [9]1054 AD, is filled with [10]mysterious filaments. The [11]filaments are not only tremendously complex, but appear to have [12]less mass than expelled in the original supernova and a [13]higher speed than expected from a free explosion. The [14]featured image, taken by the [15]Hubble Space Telescope, is [16]presented in three colors chosen for [17]scientific interest. The [18]Crab Nebula spans about 10 [19]light-years. In [20]the nebula's very center lies a [21]pulsar: a [22]neutron star as massive as the [23]Sun but with only the size of a [24]small town. The [25]Crab Pulsar rotates about 30 times each second. Discovery + Outreach: [26]Graduate student research position open for APOD Tomorrow's picture: Moon, enhanced __________________________________________________________________ [27]< | [28]Archive | [29]Submissions | [30]Index | [31]Search | [32]Calendar | [33]RSS | [34]Education | [35]About APOD | [36]Discuss | [37]> __________________________________________________________________ Authors & editors: [38]Robert Nemiroff ([39]MTU) & [40]Jerry Bonnell ([41]UMCP) NASA Official: Phillip Newman [42]Specific rights apply. [43]NASA Web Privacy Policy and Important Notices A service of: [44]ASD at [45]NASA / [46]GSFC, [47]NASA Science Activation & [48]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2301/CrabNebula_Hubble_3864.jpg 3. https://www.nasa.gov/ 4. https://esa.int/hubble/ 5. https://www.nasa.gov/mission_pages/hubble/story/index.html 6. http://sese.asu.edu/ 7. https://www.nasa.gov/feature/goddard/2017/messier-1-the-crab-nebula 8. https://imagine.gsfc.nasa.gov/science/objects/supernovae1.html 9. http://messier.seds.org/more/m001_sn.html 10. http://www.youtube.com/watch?v=5VnJ9pRR8-8 11. https://apod.nasa.gov/apod/ap980208.html 12. https://ui.adsabs.harvard.edu/abs/1995ApJ...454L.129F/abstract 13. https://ui.adsabs.harvard.edu/abs/1998PASP..110..831N/abstract 14. https://www.spacetelescope.org/images/heic0515a/ 15. https://www.nasa.gov/mission_pages/hubble/story/index.html 16. https://www.youtube.com/watch?v=_2Fte8xkTpo 17. http://s9.favim.com/orig/131225/cat-galaxy-glasses-Favim.com-1181244.jpg 18. https://en.wikipedia.org/wiki/Crab_Nebula 19. https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html 20. https://www.youtube.com/watch?v=vPxLVgTIAbk 21. http://www.jb.man.ac.uk/~pulsar/Education/Sounds/sounds.html 22. https://www.astro.umd.edu/~miller/nstar.html 23. https://solarsystem.nasa.gov/solar-system/sun/in-depth/ 24. https://www.cityofhoughton.com/ 25. https://apod.nasa.gov/apod/ap020920.html 26. http://asterisk.apod.com/viewtopic.php?t=42847 27. https://apod.nasa.gov/apod/ap230114.html 28. https://apod.nasa.gov/apod/archivepix.html 29. https://apod.nasa.gov/apod/lib/apsubmit2015.html 30. https://apod.nasa.gov/apod/lib/aptree.html 31. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 32. https://apod.nasa.gov/apod/calendar/allyears.html 33. https://apod.nasa.gov/apod.rss 34. https://apod.nasa.gov/apod/lib/edlinks.html 35. https://apod.nasa.gov/apod/lib/about_apod.html 36. http://asterisk.apod.com/discuss_apod.php?date=230115 37. https://apod.nasa.gov/apod/ap230116.html 38. http://www.phy.mtu.edu/faculty/Nemiroff.html 39. http://www.phy.mtu.edu/ 40. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 41. http://www.astro.umd.edu/ 42. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 43. https://www.nasa.gov/about/highlights/HP_Privacy.html 44. https://astrophysics.gsfc.nasa.gov/ 45. https://www.nasa.gov/ 46. https://www.nasa.gov/centers/goddard/ 47. https://science.nasa.gov/learners 48. http://www.mtu.edu/