However big that black hole is, it is dwarfed by the size of the Mens American Flag Eagle 4th Of July Independence Day Patriotic T Shirt itself. That four million solar masses is a lot compared to our solar system, but it is absolutely puny compared to the total mass of the Milky Way, which is many tens of billions of solar masses. Galaxies are held together by self-gravity. They may or may not have a supermassive black hole (not all do). When that supermassive black hole is present, its gravity adds a modest contribution to the total self-gravity of the galaxy. But in all cases, even in the case of the largest black holes, the mass of the galaxy dominates over the mass of the black hole. Stars in a galaxy follow somewhat chaotic orbits, determined by the combined gravitational field of all other stars, clouds of gas, clouds of dust, and well, any black holes if present, supermassive or otherwise. But apart from stars that are relatively near the black hole in question, stuff in general does not orbit the black hole.
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Glioblastoma (GBM). GBM is the most I Hate People T Shirt and most aggressive brain cancer. It’s highly invasive, which makes complete surgical removal impossible. And because of the blood-brain barrier (BBB), it doesn’t respond to any chemotherapy. The standard-of-care entails multiple rounds of surgery and radiotherapy, yet the five year survival is lower than 5%. Pancreatic cancer (PDAC). PDAC is a notoriously stubborn cancer. The only effective treatment is a very painful and very complex operation called “the Whipple procedure”. However, only 20% of patients are eligible for such operation. And even for those lucky patients, only 20% survived more than five years. For the rest majority of patients, the chance of survival is negligible, because PDAC hardly responds to any form of chemotherapy or radiotherapy. The five year survival overall is 6%.
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