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A Key Geologic Event May Have Never Occurred; The Late Heavy Bombardment

One of the most important geologic events in the first 1 billion years of the Earth's history may have never actually occurred. This event is referred to as the late heavy bombardment, which represented a sudden 3 fold increase in impact events within the entire inner solar system between 3.9 and 3.8 billion years ago. While this event could have still technically occurred, increasing evidence is calling into question whether this key geologic event ever even took place. Thumbnail Photo Credit: iStock.com, solarseven, https://www.istockphoto.com/photo/hug.... This image was cropped, then color enhanced, overlaid with text, and overlaid with GeologyHub made graphics (the GeologyHub logo and the image border). If you would like to support this channel, consider using one of the following links: (Patreon:   / geologyhub  ) (YouTube membership:    / @geologyhub  ) (Gemstone & Mineral Etsy store: http://prospectingarizona.etsy.com) (GeologyHub Merch Etsy store: http://geologyhub.etsy.com) Google Earth imagery used in this video: ©Google & Data Providers This video is protected under "fair use". If you see an image and/or video which is your own in this video, and/or think my discussion of a scientific paper (and/or discussion/mentioning of the data/information within a scientific paper) does not fall under the fair use doctrine, and wish for it to be censored or removed, contact me by email at [email protected] and I will make the necessary changes. Various licenses used in sections of this video (not the entire video, this video as a whole does not completely fall under one of these licenses) and/or in this video's thumbnail image: CC BY 2.0: https://creativecommons.org/licenses/... CC BY 4.0: https://creativecommons.org/licenses/... Sources/Citations: [1] NASA [2] U.S. Geological Survey [3] Hartmann, W.K. History of the Terminal Cataclysm Paradigm: Epistemology of a Planetary Bombardment That Never (?) Happened. Geosciences 2019, 9, 285. https://doi.org/10.3390/geosciences90..., CC BY 4.0. [4] Donald R. Lowe, Gary R. Byerly, The terrestrial record of Late Heavy Bombardment, New Astronomy Reviews, Volume 81, 2018, Pages 39-61, ISSN 1387-6473, https://doi.org/10.1016/j.newar.2018..... (https://www.sciencedirect.com/science...) [5] iStock Image, by solarseven, https://www.istockphoto.com/photo/hug.... 0:00 The Lunar Cataclysm 0:33 Late Heavy Bombardment 2:21 Evidence Against 3:35 A Single Impact Basin