1 ene 1980 año - Works Cited

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Bakken, Gordon M. and Brenda Farrington. "Hubble, Grace Lillian Burke (1889–1981)." Encyclopedia of Women in the American West. Edited by Vol. 1. Thousand Oaks: SAGE Publications, Inc., 2003, pp. 139-42. SAGE Knowledge. 20 Apr 2022, doi: https://dx.doi.org/10.4135/9781412950626.n75.

"Edwin Hubble". Biography, 2014, https://www.biography.com/scientist/edwin-hubble.

"Measuring The Expansion Of The Universe: Surprising Discrepancies Hint At Inconsistency In The Composition Of The Universe". Scitechdaily, 2021, https://scitechdaily.com/measuring-the-expansion-of-the-universe-surprising-discrepancies-hint-at-inconsistency-in-the-composition-of-the-universe/.

"Messier 31: Andromeda Galaxy - Messier Objects". Messier Objects, 2015, https://www.messier-objects.com/messier-31-andromeda-galaxy/.

Shivni, Rashmi. "100 Years Of Mount Wilson’S 100-Inch Telescope, The First To Discover The Universe". PBS Newshour, 2017, https://www.pbs.org/newshour/science/100-years-of-mount-wilsons-100-inch-telescope.

Smith, Robert. "Edwin Hubble". Encyclopedia Britannica, 15 Dec. 2021, https://www.britannica.com/biography/Edwin-Hubble. Accessed 19 April 2022.

"The Realm Of The Nebulae". Galileo, https://galileo.ou.edu/exhibits/realm-nebulae.

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