NASA
Chasing Down a Satellite
Calculate the speed of the International Space Station. By reading the article, pupils learn about the concept of orbits. Scholars work through a formula to determine how fast the International Space Station is traveling to stay in...
DOGO Media
Dogo News: Spacewalks Have Come a Long Way in Fifty Years!
Learn about the evolution of spacewalking over the last fifty years. Includes video.
Khan Academy
Khan Academy: What Is Newton's First Law?
Newton's First Law also called the law of inertia is the most important thing to realize about motion. This article offers more information on motion and explains solved problems involving Newton's First Law. Also included is a video...