Scott J. Kelly is a former military fighter pilot and test pilot, an engineer, a retired NASA astronaut and U.S. Navy captain.

A veteran of four space flights, Captain Kelly commanded the International Space Station on three expeditions and was a member of the year-long mission to the ISS.

In October 2015, Kelly set the record for the total accumulated number of days spent in space - the single longest space mission by an American astronaut.

His identical twin brother, Mark Kelly, is also a retired astronaut and a United States senator from Arizona.

INFINITE WONDER: An Astronaut's Photographs From A Year In Space

From the record-breaking astronaut, national hero and best-selling author of ENDURANCE: My Year in Space, A Lifetime of Discovery, a breathtaking collection of photos documenting his journey on the International Space Station, the vastness of space and the unparalleled beauty of our own home planet.

MESSAGE FROM UNITED STATES SENATOR MICHAEL D. BROWN

Captain Kelly took it upon himself to visit Ukraine last month to raise awareness, and now funds for C-class ambulances, to help Ukrainians get through the aggression initiated by Russia. I'll talk to Captain Kelly about what he saw on his visit to the war-torn country, the threat to democracy around the world, as well as his record-breaking 520 days in space.

Join us for what is bound to be an interesting and provocative discussion!