It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Colliding galaxies don’t shake up enough food to feed enormous black holes lurking in their centers. A new study suggests that less violent events, like gravitational disturbances within the galaxy, are probably black holes’ primary source of fuel.
Almost every galaxy is centered on a supermassive black hole hundreds of millions of times more massive than the sun. Some of them, like the black hole at the center of the Milky Way, are relatively docile. But others draw a huge, hot disk of gas that glows white-hot just before it vanishes forever. These disks, called active galactic nuclei, can outshine the rest of the host galaxy.
Astronomers have suspected for decades that these ravenous black holes get their fuel from major mergers between two large galaxies. In all the chaos of a galactic pile-up, plenty of gas should get funneled toward the center and gobbled up, astronomers reasoned. Simulations have found that black holes and galaxies grow together. Some observations even suggested that galaxies with active galactic nuclei were slightly distorted, a sign of a recent collision.
In a paper to appear in the Jan. 10 Astrophysical Journal, Jahnke and colleagues selected galaxies from the COSMOS dataset, the largest continuous galaxy survey the Hubble Space Telescope has ever completed. The survey covered an area of the sky 10 times the size of the full moon, and found hundreds of thousands of galaxies.
Originally posted by seedofchucky
"The sad thing is that unless we leave this planet-or develope the tech to do so, the Human Race is doomed. Someday, something will happen to this planet and it will be gone. I sure hope we can do it by then"
how is this a sad thing ? Why the hell would the rest of the universe want earths cancer? The universe is doomed if humans find a way off this planet and start inhabiting other planets. I would be the first to sign up for mass extermination inorder for the universe and the other species of earth to live on without its cancer known as humans