{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-c03aa079.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-517835be.css\" media=\"all\" /\u003e\n\u003cdiv data-title='The Faint Young Sun Paradox!' data-url='/boclips/videos/5f871cd4f015e06667da41db' data-video-url='/boclips/videos/5f871cd4f015e06667da41db' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nThe Faint Young Sun Paradox!\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30358007\" href=\"/search?publisher_ids%5B%5D=30358007\"\u003eMinuteEarth\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eThis video was supported by the Heising-Simons Foundation. To learn more, visitCredits (and Twitter handles):Script Writer: Emily Elert (@eelert)Script Editor: Rachel Becker (@RA_Becks)Video Illustrator: Ever Salazar (@eversalazar)Video...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eThis video was supported by the Heising-Simons Foundation. To learn more, \u003ca href='https://www.heisingsimons.org/' target='_blank' rel='nofollow'\u003evisit\u003c/a\u003e\u003cbr/\u003e\u003cbr/\u003eCredits (and Twitter handles):\u003cbr/\u003eScript Writer: Emily Elert (@eelert)\u003cbr/\u003eScript Editor: Rachel Becker (@RA_Becks)\u003cbr/\u003eVideo Illustrator: Ever Salazar (@eversalazar)\u003cbr/\u003eVideo Director: Emily Elert (@eelert)\u003cbr/\u003eVideo Narrator: Emily Elert (@eelert)\u003cbr/\u003eWith Contributions From: Henry Reich, Alex Reich, Kate Yoshida, Omkar Bhagat, Peter Reich, David Goldenberg \u003cbr/\u003eMusic by: Nathaniel \u003ca href='http://www.soundcloud.com/drschroede' target='_blank' rel='nofollow'\u003eSchroeder\u003c/a\u003e\u003cbr/\u003e__________________________________________\u003cbr/\u003e\u003cbr/\u003eIf you liked this week’s video, we think you might also like this: \u003cbr/\u003eFantastic Aurora: Inside the Sun to Earth's \u003ca href='https://youtu.be/N5utQxtma2U?t=3m1s' target='_blank' rel='nofollow'\u003ePoles\u003c/a\u003e\u003cbr/\u003e\u003cbr/\u003eFYI: We try to leave jargon out of our videos, but if you want to learn more about this topic, here are some handy keywords to get your googling started: \u003cbr/\u003e\u003cbr/\u003eAbiogenesis – the process of life arising from non-living matter, such as simple organic compounds.\u003cbr/\u003e\u003cbr/\u003eAmino Acids – a class of organic compounds. Twenty of the roughly 500 known amino acids appear in the genetic code, and, when strung together into long chains, form the basic building blocks of proteins. \u003cbr/\u003e\u003cbr/\u003eFaint Young Sun Paradox – describes the apparent contradiction between evidence for a warm ancient Earth, and stellar models, which predict that the young Sun was 25% dimmer than today's Sun. First described by Carl Sagan and George Mullen in 1972.\u003cbr/\u003e\u003cbr/\u003eThe Miller–Urey experiment – a landmark experiment in the 1950s in which scientists demonstrated that amino acids could form spontaneously from inorganic gases present in Earth's early atmosphere\u003cbr/\u003e\u003cbr/\u003eSnowball Earth – a climatic state of Earth in which the entire surface becomes frozen over. \u003cbr/\u003e\u003cbr/\u003eMolecules featured in this video:\u003cbr/\u003e- Carbon dioxide (CO2)\u003cbr/\u003e- Methane (CH4)\u003cbr/\u003e- Nitrous oxide (N20)\u003cbr/\u003e- Hydrogen cyanide (HCN)\u003cbr/\u003e- Amino acids (especifically threonine, valine, cysteine and methionine)\u003cbr/\u003e- Adenine (C5H5N5)\u003cbr/\u003e- Glycine (C2H5NO2)\u003cbr/\u003e\u003cbr/\u003e___________________________________________\u003cbr/\u003e\u003cbr/\u003eReferences:\u003cbr/\u003e\u003cbr/\u003eAirapetian, V. S., Glocer, A., Gronoff, G., Hébrard, E., \u0026 Danchi, W. (2016). Prebiotic chemistry and atmospheric warming of early Earth by an active young Sun. Nature Geoscience Nature Geosci, 9(6), 452-455. doi:10.1038/ngeo2719\u003cbr/\u003e\u003cbr/\u003eEarth's changeable atmosphere. (2016). Nature Geoscience Nature Geosci, 9(6), 409-409. doi:10.1038/ngeo2735\u003cbr/\u003e\u003cbr/\u003eFeulner, G. (2012). The faint young Sun problem. Rev. Geophys. Reviews of Geophysics, 50(2). doi:10.1029/2011rg000375\u003cbr/\u003e\u003cbr/\u003eLeconte, J., Forget, F., Charnay, B., Wordsworth, R., \u0026 Pottier, A. (2013). Increased insolation threshold for runaway greenhouse processes on Earth-like planets. Nature, 504(7479), 268-271. doi:10.1038/nature12827\u003cbr/\u003e\u003cbr/\u003eMarchi, S., Black, B., Elkins-Tanton, L., \u0026 Bottke, W. (2016). Massive impact-induced release of carbon and sulfur gases in the early Earth's atmosphere. Earth and Planetary Science Letters, 449, 96-104. doi:10.1016/j.epsl.2016.05.032\u003cbr/\u003e\u003cbr/\u003eSagan, C., \u0026 Mullen, G. (1972). Earth and Mars: Evolution of Atmospheres and Surface Temperatures. Science, 177(4043), 52-56. doi:10.1126/science.177.4043.52\u003cbr/\u003e\u003cbr/\u003eWolf, E. T., \u0026 Toon, O. B. (2014). Delayed onset of runaway and moist greenhouse climates for Earth. Geophys. Res. Lett. Geophysical Research Letters, 41(1), 167-172. doi:10.1002/2013gl058376\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead More\u003c/span\u003e\n\u003c/button\u003e\n\u003cdiv class='rp-report'\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='resource-details-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='resource-details-heading'\u003eResource Details\u003c/h2\u003e\n\u003cdiv class='rp-resource-details clearfix'\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003cdt\u003eCurator Rating\u003c/dt\u003e\n\u003cdd\u003e\u003cspan class=\"star-rating\" aria-label=\"5.0 out of 5 stars\" role=\"img\"\u003e\u003ci class=\"fa-solid fa-star text-action\" 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Videos\u003c/a\u003e\u003c/span\u003e\u003c/dd\u003e\n\u003c/dl\u003e\n\u003c/div\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003cdt\u003eSource:\u003c/dt\u003e\n\u003cdiv class='preview-source' data-animation='true' data-boundary='.rp-info' data-container='.rp-resource-details' data-html='false' data-title='Short, animated videos answering the big and small questions about the world around us.' data-trigger='hover focus'\u003e\n\u003cspan\u003eMinuteEarth\u003c/span\u003e\n\u003ci aria-hidden='true' class='fa-solid fa-circle-info channel-tooltip-icon' id='channel-tooltip'\u003e\u003c/i\u003e\n\u003c/div\u003e\n\u003c/dl\u003e\n\u003c/div\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003cdt\u003eDate\u003c/dt\u003e\n\u003cdd\u003e2016\u003c/dd\u003e\n\u003c/dl\u003e\n\u003c/div\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003ci aria-hidden='true' class='fai fa-solid 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class='rp-info-section'\u003e\n\u003ch2 class='title' id='additional-tags-heading'\u003eAdditional Tags\u003c/h2\u003e\n\u003cdiv class='clearfix'\u003e\n\u003cdiv class='details-list keyterms' data-identifier='Boclips::VideoDecorator5f871cd4f015e06667da41db' data-type='keyterms'\u003eatmosphere, surface, hypothesis, planet, baby, life, earth, rock, bright, early earth, today, interact, safe, warm, snowball, brighter, paradox, grow, cool, create, faint young, early, solar\u003c/div\u003e\n\u003cdiv class='keyterms-toggle-buttons' data-identifier='Boclips::VideoDecorator5f871cd4f015e06667da41db'\u003e\n\u003cbutton aria-expanded='false' class='more btn-link' type='button'\u003e\n\u003cspan\u003eShow More\u003c/span\u003e\n\u003ci aria-hidden='true' class='fa-solid fa-caret-down ml5'\u003e\u003c/i\u003e\n\u003c/button\u003e\n\u003cbutton aria-expanded='true' class='less btn-link' style='display: none;' type='button'\u003e\n\u003cspan\u003eShow Less\u003c/span\u003e\n\u003ci 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