﻿ 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 November 8 [2]A deep space image showing many galaxies, some of which are seen in a central bar running nearly horizontally across the image. Please see the explanation for more detailed information. Perseus Galaxy Cluster from Euclid Image Credit & [3]License: [4]ESA, [5]Euclid, [6]Euclid Consortium, [7]NASA; Processing: [8]Jean-Charles Cuillandre ([9]CEA Paris-Saclay) & [10]Giovanni Anselmi; Text: [11]Jean-Charles Cuillandre Explanation: There's a new space telescope in the sky: [12]Euclid. Equipped with two large panoramic cameras, [13]Euclid captures light from the [14]visible to the near-[15]infrared. It took five hours of observing for [16]Euclid's 1.2-meter diameter primary mirror to capture, through its [17]sharp optics, the 1000+ galaxies in the [18]Perseus cluster, which lies 250 million [19]light years away. More than 100,000 galaxies are visible in the background, some as [20]far away as 10 billion light years. The revolutionary nature of [21]Euclid lies in the combination of its wide field of view (twice the area of the full moon), its high angular resolution (thanks to its [22]620 Megapixel camera), and its infrared vision, which captures both images and [23]spectra. [24]Euclid's initial surveys, covering a third of the sky and recording over 2 billion galaxies, will enable a [25]study of how [26]dark matter and [27]dark energy have shaped [28]our universe. Tomorrow's picture: M1 __________________________________________________________________ [29]< | [30]Archive | [31]Submissions | [32]Index | [33]Search | [34]Calendar | [35]RSS | [36]Education | [37]About APOD | [38]Discuss | [39]> __________________________________________________________________ Authors & editors: [40]Robert Nemiroff ([41]MTU) & [42]Jerry Bonnell ([43]UMCP) NASA Official: Phillip Newman [44]Specific rights apply. [45]NASA Web Privacy Policy and Important Notices A service of: [46]ASD at [47]NASA / [48]GSFC, [49]NASA Science Activation & [50]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2311/Perseus_Euclid_4400.jpg 3. https://creativecommons.org/licenses/by-sa/3.0/igo/ 4. https://www.esa.int/ 5. https://www.esa.int/Science_Exploration/Space_Science/Euclid 6. https://www.euclid-ec.org/ 7. https://www.nasa.gov/ 8. https://www.facebook.com/jeancharles.cuillandre 9. https://irfu.cea.fr/en/Phocea/Vie_des_labos/Ast/ast_groupe.php?id_groupe=977&voir=2328 10. https://www.facebook.com/giovanni.anselmi1/ 11. https://www.iau.org/administration/membership/individual/16206/ 12. https://www.esa.int/Science_Exploration/Space_Science/Euclid 13. https://en.wikipedia.org/wiki/Euclid_(spacecraft) 14. https://science.nasa.gov/ems/09_visiblelight/ 15. https://science.nasa.gov/ems/07_infraredwaves/ 16. https://sci.esa.int/web/euclid/-/57042-euclid-primary-mirror 17. https://images.fineartamerica.com/images/artworkimages/mediumlarge/3/cat-looking-surprised-peering-over-the-edge-of-the-picture-john-daniels.jpg 18. https://apod.nasa.gov/apod/ap110712.html 19. https://spaceplace.nasa.gov/light-year/ 20. https://apod.nasa.gov/apod/ap220316.html 21. https://www.euclid-ec.org/public/science/ 22. https://irfu.cea.fr/dap/en/Phocea/Vie_des_labos/Ast/ast.php?t=fait_marquant&id_ast=4736 23. https://astronomy.swin.edu.au/cosmos/s/Spectroscopy 24. https://www.euclid-ec.org/public/data/surveys/ 25. https://youtu.be/-rHGTVJfcWI 26. https://en.wikipedia.org/wiki/Dark_matter 27. https://science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy/ 28. https://ui.adsabs.harvard.edu/abs/2008AmJPh..76..265N/abstract 29. https://apod.nasa.gov/apod/ap231107.html 30. https://apod.nasa.gov/apod/archivepix.html 31. https://apod.nasa.gov/apod/lib/apsubmit2015.html 32. https://apod.nasa.gov/apod/lib/aptree.html 33. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 34. https://apod.nasa.gov/apod/calendar/allyears.html 35. https://apod.com/feed.rss 36. https://apod.nasa.gov/apod/lib/edlinks.html 37. https://apod.nasa.gov/apod/lib/about_apod.html 38. https://asterisk.apod.com/discuss_apod.php?date=231108 39. https://apod.nasa.gov/apod/ap231109.html 40. http://www.phy.mtu.edu/faculty/Nemiroff.html 41. http://www.phy.mtu.edu/ 42. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 43. http://www.astro.umd.edu/ 44. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 45. https://www.nasa.gov/about/highlights/HP_Privacy.html 46. https://astrophysics.gsfc.nasa.gov/ 47. https://www.nasa.gov/ 48. https://www.nasa.gov/centers/goddard/ 49. https://science.nasa.gov/learners 50. http://www.mtu.edu/