The mission seemed impossible, the odds astronomical, but the results were spectacular. NOVA presents the fascinating story behind the Apollo space program, including the historic walk on the moon in 1969, in a two-hour special. Meet unsung heroes, experience the dangers, and discover new Apollo perspectives through rare footage, little-known facts, and interviews with NASA scientists, engineers, geologists, and the astronauts themselves.

On August 21, a total solar eclipse crosses the continental U.S. for the first time in 99 years. Scientists and cutting-edge NASA missions investigate this once-in-a-life-time event: how and why they occur, and they reveal about the sun.

Follow the diabetes epidemic in the U.S. Diabetes and pre-diabetes affect over 100 million people in the country, costing more than $325 billion each year. The documentary puts human faces to these statistics, exploring the history and science of the illness through portraits of Americans whose stories shape the film.

CRISPR gene-editing technology is advancing quickly. What can it do now and in the future?

Why does a widely used internet search engine deliver results that can be blatantly racist and sexist? Two leading information researchers investigate their discoveries of hidden biases in the search technology we rely on every day.