Scott Joseph Kelly is an engineer, retired American astronaut, and a retired U.S. Navy Captain. A veteran of four space flights, Kelly commanded the International Space Station on Expeditions 26, 45, and 46.
Carl Zimmer is a popular science writer and blogger who has specialized in the topics of evolution and parasites. He has authored many books and contributes science essays to publications such as The New York Times, Discover, and National Geographic.
Lucy Rose, is a singer-songwriter and musician from Warwickshire, England. Her debut album, Like I Used To was released in September 2012. Rose released her second album Work It Out on 6 July 2015 on Columbia Records. Her third album Something's Changing will be released in July 2017 on Communion Records.