I heard comparisons of the number of stars in the observable universe to the number of all grains of sand on Earth's beaches, or the number of molecules in a bottle of air. Not sure if that helps anyone, though.
The radius of the observable universe is estimated to be about 46.5 billion light-years. The Horsehead Nebula that they zoom into in the video is 0.000001375 billion light-years from Earth. I'm doing mind acrobatics to try to understand the scale but... nope! :)
