When a Madison elementary school student posed the question “How do cows make milk?,” the Blue Sky Science team turned to CALS associate professor of dairy science Laura Hernandez for the answer. Watch Hernandez’s response in the video below or on the Blue Sky Science website.

Blue Sky Science is a collaboration of the Wisconsin State Journal and the Morgridge Institute for Research. The questions are posed by visitors to the Discovery Building. The Blue Sky Science team then sets out to find an expert to answer the questions.