Rocky Mountain PBS
Colorado Science: Researchers discover secret to Castle Rock's longevity
Denver Museum of Nature and Science researchers found that Castle Rock’s durability is due microscopic amounts of the colorful gemstone opal.
Season 1 Episode 1 | 111m 52s | CC
The search for a “cure” for cancer is the greatest epic in the history of science, spanning centuries and continents. This episode follows that centuries-long search, but centers on the story of Sidney Farber, who, defying conventional wisdom in the late 1940s, introduces the modern era of chemotherapy, eventually galvanizing a “war on cancer.”