Watch a video that shows the X-15 aircraft as it makes its first flight. [5:56] Use the teacher's guide to help guide discussion questions. The teacher's guide has vocabulary words, study questions, and classroom activities.

Watch a brief video showing the Viking Landers touch down on Mars. [4:47] Learn how the Viking Landers were designed to work and how they lead the way to further Mars exploration. View the teacher's guide to get vocabulary definitions,...

This video shows the Cassini-Huygens mission to Saturn and its moon Titan and examine the role it plays for the future of space exploration. [6:35] Learn what a planet needs for life to survive on it and learn how the Cassini-Huygens...