NASA astronaut Steve Swanson, Expedition 37 backup crew member, attired in a Russian Sokol launch and entry suit, takes a break from training in Star City, Russia to pose for a portrait.(Gagarin Cosmonaut Training Center / Flickr)

Have you ever wondered what it would be like to visit space?

Well, Dr. Steve Swanson has a pretty good idea. He's been there three times, serving different missions, one of which included a long stay on the International Space Station.

He and two other astronauts will be sharing their experiences at a special event on Thursday, Sept. 12 hosted by the Osher Lifelong Learning Institute in Boise. And Dr. Swanson joined Idaho Matters for a preview.