What’s it like to travel solo to the North Pole? How about trekking 1500 miles across the Gobi Desert? Our guest this hour, Helen Thayer, has accomplished these trips and many more. Thayer, who was named “One of the Greatest Explorers of the 20th Century” by National Geographic, will join us this hour to discuss her career and upcoming adventures. She’s featured in the book “Women Explorers” (2007), a new title in the Women Who Dare series from the Library of Congress.