NOVA scienceNOW host Neil deGrasse Tyson introduces the summer season and asks and answers interesting science related questions.

"Did you know that there are more stars in the universe then there are grains of sands in all the worlds beaches?"

Still images included: (sun) © Joel W. Rogers/CORBIS; (shoreline of Xinhua Bay) © CORBIS; (shoreline of Greece) Courtesy NASA & http:// visibleearth.nasa.gov/; (shoreline of Norway) Courtesy NASA/GSFC/LaRC/JPL, MISR Team; (sand) © Kazuyoshi Nomachi/Corbis