John Hoffman

A glimpse into infectious disease specialist, Dr. Anthony Fauci who has led the U.S. fight against every epidemic the country has faced from AIDS to SARS to Ebola, and the ongoing COVID-19.

In the shady campgrounds of Yosemite valley, climbers carved out a counterculture lifestyle of dumpster-diving and wild parties that clashed with the conservative values of the National Park Service.

Scientists and engineers who built the world's largest solar telescope and launched the first solar probe into space help predict and prepare the planet for solar storms.