{"id":4450,"date":"2026-07-27T14:01:08","date_gmt":"2026-07-27T14:01:08","guid":{"rendered":"https:\/\/silvybrand.com\/?p=4450"},"modified":"2026-07-27T14:01:08","modified_gmt":"2026-07-27T14:01:08","slug":"its-becoming-clear-why-black-holes-never-run-out-of-fuel","status":"publish","type":"post","link":"https:\/\/silvybrand.com\/?p=4450","title":{"rendered":"It\u2019s Becoming Clear Why Black Holes Never Run Out of Fuel"},"content":{"rendered":"


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It is believed<\/span> that nearly every large galaxy in the universe<\/a> has a supermassive black hole<\/a> at its center, with a mass ranging from millions to billions of times that of the sun<\/a>.<\/p>\n

Black holes grow by consuming surrounding matter, but in the process they also eject powerful energy jets. These jets heat the surrounding gas, delaying the formation of new stars and affecting the growth of the galaxy as a whole.<\/p>\n

This has long presented researchers with a puzzle. As a black hole emits jets and heats the surrounding gas, the gas that would otherwise be consumed by the black hole\u2014that is, its energy source\u2014is dispersed far away. And yet, why is it that black holes do not \u201crun out of fuel\u201d and instead continue to grow?<\/p>\n

To explain this mystery, researchers proposed the following hypothesis: Gas blown away by the heat eventually cools in interstellar space and condenses into thin, thread-like structures called filaments. These filaments then fall back toward the black hole.<\/p>\n

A newly published study has brought researchers closer to confirming this idea. An international team led by Julie Hlavacek-Larrondo, a professor at the University of Montreal, observed the central galaxy NGC 4696 in the Centaurus Cluster and demonstrated<\/a> a connection between such filaments and its central black hole.<\/p>\n

A \u201cCosmic Recycling System\u201d of Heating and Cooling<\/h2>\n

NGC 4696 is located about 145 million light-years from Earth. It has been the subject of extensive observation in the past, including the discovery of an S-shaped spiral structure around its central black hole.<\/p>\n

For this study, the team observed the galaxy’s central region for approximately eight hours using the James Webb Space Telescope’s (JWST)<\/a> Near-Infrared Spectrograph (NIRSpec). The observations achieved a resolution fine enough to distinguish structures only about 30 light-years across. To put this into perspective, if a galaxy 300,000 light-years wide were scaled to the size of a soccer field, this would be equivalent to identifying a single marble placed on that field from a distance of 50 kilometers.<\/p>\n

The observed motion of the gas revealed that the S-shaped spiral is actually a rotating disk of gas orbiting the black hole. The disk is about 800 light-years in diameter, with gas pulled by the black hole’s immense gravity rotating at several hundred kilometers per second. A velocity difference of roughly 600 kilometers per second was measured between opposite edges of the disk.<\/p>\n

The observations also showed that filaments\u2014formed from condensed gas\u2014flow directly into the edge of the disk. The gas travels along these filaments, accumulates in the disk, and is ultimately supplied to the black hole as “fuel.” For the first time, this entire pathway has been directly visualized.<\/p>\n

\u201cWhat JWST is revealing is that black holes may be the ultimate cosmic recyclers,\u201d says<\/a> Hlavacek-Larrondo. \u201cThey release enormous amounts of energy that heat their surroundings, yet that same gas can later cool into thin filaments that fall back inward and feed the black hole again. We are finally seeing this self-sustaining cycle in action.\u201d<\/p>\n

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\"Image<\/picture><\/span><\/div>\n
<\/p>\n

A view of the center of NGC 4696. The grayscale image in the background was taken by the Hubble Space Telescope. The overlaid color map shows the distribution of gas falling toward the black hole, as observed using the James Webb Space Telescope\u2019s near-infrared spectrograph, \u201cNIRSpec.\u201d An S-shaped vortex can be seen within the gas.<\/p>\n

<\/span>Photograph: NASA\/ESA\/CSA\/STScI\/J. Hlavacek-Larrondo, et al. 2026<\/span><\/div>\n<\/figure>\n

Black Holes Control the Growth of Galaxies<\/h2>\n

In addition to the observations, the research team carried out computer simulations, which led them to the following theory:<\/p>\n

As filamentary gas falls toward the black hole, stretched magnetic fields act like ropes, exerting torque that removes the gas’s angular momentum. As a result, the gas falls into the disk rather than being scattered away.<\/p>\n<\/div>\n


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It is believed that nearly every large galaxy in the universe has a supermassive black hole at its center, with a mass ranging from millions to billions of times that of the sun. Black holes grow by consuming surrounding matter, but in the process they also eject powerful energy jets. These jets heat the surrounding […]<\/p>\n","protected":false},"author":1,"featured_media":4451,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[307,330,263,170,908],"class_list":["post-4450","post","type-post","status-publish","format-standard","has-post-thumbnail","category-gadgets","tag-astronomy","tag-black-holes","tag-physics","tag-space","tag-universe"],"yoast_head":"\nIt\u2019s Becoming Clear Why Black Holes Never Run Out of Fuel - Silvybrand Lifestyle Blog<\/title>\n<meta name=\"description\" content=\"Black holes eject powerful energy jets that blow away the surrounding gas to great distances. 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