{"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='Dark Energy and Black Holes: A Hidden Connection?' data-url='/boclips/videos/689565b2f85aec7d1d07d042' data-video-url='/boclips/videos/689565b2f85aec7d1d07d042' 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\nDark Energy and Black Holes: A Hidden Connection?\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=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\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'\u003eSUMMARY:Are black holes the source of dark energy? A new study by Farrah et al, published in February of 2023 claimed to have found a solution to dark energy, showing a connection with supermassive black holes. What is dark energy? It's...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eSUMMARY:\u003cbr/\u003eAre black holes the source of dark energy? A new study by Farrah et al, published in February of 2023 claimed to have found a solution to dark energy, showing a connection with supermassive black holes. \u003cbr/\u003e\u003cbr/\u003eWhat is dark energy? It's the apparent energy of empty space that is powering the observed accelerating expansion of the universe. This energy makes up about 70% of the total energy of the universe. \u003cbr/\u003e\u003cbr/\u003eBlack holes form after a massive star runs out of fuel, sometimes resulting from a supernova. Once a star has no fuel left to burn, it can no longer support its mass and so it collapses. If the star is more than 3 solar masses, it is likely to form a black hole at the end of its life. Steller-class black hole can be as small as 3 solar masses but super massive black holes can be millions to billions of solar masses. These are thought be at the center of most galaxies that we observe. \u003cbr/\u003e\u003cbr/\u003eThe supermassive black holes are known to grow in size over time. There are two ways in which they can grow. Either by eating up stars, gases and other matter that comes close to it or by merging with other black holes. But if there is nothing nearby, then there is, nothing to eat. So they would be expected to stop growing at some point after they have consumed everything near it. \u003cbr/\u003e#darkenergy \u003cbr/\u003e#blackhole \u003cbr/\u003eThey looked at dormant galaxies with supermassive blackholes inside. These are very old black holes that have accreted most of the mass nearby and are not active. They found that over a period of 9 billion years, the supermassive blackholes in galaxies seem to grow 7-20 times their own mass, something which we wouldn’t expect. So where are these black holes getting the mass or energy to grow? What are they eating?\u003cbr/\u003e\u003cbr/\u003eThe scientists propose that black holes have a connection to dark energy, and that they grow because of it, in fact dark energy may be contained inside black holes.\u003cbr/\u003e\u003cbr/\u003eHow did they measure these blackholes over billions of years? What they did is make a simple assumption, that such types of dormant galaxies should all behave similarly over their lifetime. So by examining similar galaxies across the universe at different stages of their lifetime, we should be able to see the pattern of how they all grow.\u003cbr/\u003e \u003cbr/\u003eHow did they figure out the mass of these supermassive black holes? The mass of a supermassive black hole and the mass of the bulge are related. There is also a link between the motion of the stars in a galaxy’s bulge and the mass of its supermassive black hole at the center. \u003cbr/\u003e\u003cbr/\u003eThey present a model where they assume some coupling “k” between black holes and dark energy. In very simple terms, if the growth of black holes has no correlation with dark energy, then k=0. If there is a perfect correlation, k=3. They showed that K=3.11 with 90% certainty. But they also showed with a 99.98% certainty say that k is not zero, meaning it is very unlikely that there is no correlation. \u003cbr/\u003e \u003cbr/\u003eIf this result is correct, it would mean that black holes could be full of dark energy. That’s where it resides, whatever it might actually be. This theory, if true, could resolve the problem of the singularity, because if it has enough dark energy then it could counteract the effect of infinitely dense mass that punches a hole in spacetime.\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 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