Recorded at one of the last public appearances before his death, this keynote talk by Dr. Carl Sagan is a classic. Speaking at a transportation conference, he traces the progress of man's movement through time and space from the cave man to the era of space exploration. Then, with his incomparable narrative style, he stirs our imagination. He sends us to the stars and gives us cause to consider who we are and how we fit in the grandeur of the "Cosmos."