Captions provided by CCTubes – Captioning the Internet! We’ve been trying to count the galaxies in the universe since the mid ’90s, but our estimates change as our tools improve. So what does our current estimate really mean?
Hosted by: Reid Reimers
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Sources:
https://arxiv.org/pdf/1607.03909v2.pdf
https://www.nasa.gov/feature/goddard/2016/hubble-reveals-observable-universe-contains-10-times-more-galaxies-than-previously-thought
https://www.theatlantic.com/science/archive/2016/10/so-many-galaxies/504185/
https://phys.org/news/2017-01-universe-trillion-galaxies.html
https://gizmodo.com/we-were-very-wrong-about-the-number-of-galaxies-in-the-1787750693
https://www.spacetelescope.org/news/heic1620/ [includes PR videos]
https://www.scientificamerican.com/article/universe-has-10-times-more-galaxies-than-researchers-thought/
https://www.nature.com/news/hubble-telescope-reveals-deepest-view-of-the-universe-yet-1.14489
https://www.nature.com/news/universe-has-ten-times-more-galaxies-than-researchers-thought-1.20809
http://www.skyandtelescope.com/astronomy-news/universe-2-trillion-galaxies/
https://www.smithsonianmag.com/smart-news/there-are-10-times-many-galaxies-previously-thought-180960796/
http://www.slate.com/blogs/bad_astronomy/2016/10/14/there_are_two_trillion_galaxies_in_the_universe.html
http://hubblesite.org/image/385/news_release/1996-01
Images:
https://www.spacetelescope.org/images/heic0814a/
https://www.spacetelescope.org/images/opo1724a/
https://commons.wikimedia.org/wiki/File:HubbleDeepField.800px.jpg
https://commons.wikimedia.org/wiki/File:Hubble_ultra_deep_field_high_rez_edit1.jpg
https://en.wikipedia.org/wiki/File:James_Webb_Space_Telescope_2009_top.jpg
https://www.spacetelescope.org/images/heic0910i/
https://www.spacetelescope.org/images/heic1215b/
https://www.spacetelescope.org/images/heic1414a/
https://www.spacetelescope.org/images/heic0911b/
https://www.nasa.gov/mission_pages/hubble/science/hst_img_20080520.html
