Not only because it means we're about to learn some big stuff, but also because it would be completely *preposterous* if humans at our puny stage of development had already correctly figured out every last detail about insanely complex things like the exact size, age, and origin and age of galaxy-sized things that developed tens of billions of years ago, billions of light-years away from the tiny rock we stand on. Getting things wrong shows that people are actually doing science honestly!
Not only because it means we're about to learn some big stuff, but also because it would be completely *preposterous* if humans at our puny stage of development had already correctly figured out every last detail about insanely complex things like the exact size, age, and origin and age of galaxy-sized things that developed tens of billions of years ago, billions of light-years away from the tiny rock we stand on. Getting things wrong shows that people are actually doing science honestly!