Mark Adams sent us photos of Machu Picchu in tandem with his first hour appearance on the 5/3/12 show. The full site is pictured on the left, on the right is the enigmatic Intihuatana stone.
Click on images to view larger. More of Mark's photos here.
David Livingston of The Space Show discussed developments in space exploration. Followed by Leela Hutchison on her explorations into giant crystal caves.