How to pronounce “observational cosmology” in English

uh, and that was literally the thing that laid the foundation for the Big Bang Theory. Apart from Einstein's Equations of General Relativity, uh, thisis where observational cosmology began. Umm, I -- I just wanted to show you this particular galaxy. It's called the Sombrero Galaxy. Umm, it's a strikingpicture and it is nothing like what people like Hubble would have seen. This is actually taken with a 4-meter glass telescope in Chile. The reason I mention -- bring