THE SOLAR SYSTEM
What is our cosmic address? We learn that our home planet is but one in a group of other planets in the solar system orbiting the sun; that our solar system is only one of perhaps a hundred billion star systems that make up our own Milky Way galaxy; and that in the entire universe there are hundreds of billions of galaxies. The lesson begins with a view an imaginary observer might get from a million or so light years away. We can see the sun’s position within one of the spiral arms of the galaxy, nestled between neighboring stars. As we move in closer, we begin to see details of the planets and their natural satellites. For this position, NASA footage of the Voyager flybys is used extensively, revealing incredible detail and the stunning color of many of the planets. While the captivating imagery holds the students spellbound, the narration teaches them many important facts about each planet. Also covered are other members of the solar system; comets, asteroids, and meteors. Some history is included too, giving the students some idea of the contributions of people like Copernicus, Kepler, and Galileo. [color, 23 minutes] $39.95 TT0003

THE MOON
The moon is Earth’s nearest celestial neighbor. Using NASA footage from the Apollo Missions, students will witness astronauts working and playing on the moon, while the narration teaches them about the moon’s lack of atmosphere, its one-sixth G, its mountains and craters and its geology. They will grasp the profound significance of this historical human achievement. This video lesson will help the students appreciate the size of the moon and its distance from the Earth in comparison to the sun and the other stars. They will gain an understanding of how the moon’s phases come about and what occurs during a lunar eclipse. They’ll find out that on the Earth, the moon does more than inspire writers of romantic ballads. It exerts a very tangible effect on our oceans, producing tides at regular intervals. They should come away thinking of the moon as a creation of beauty and as another world of fascination. [color, 18 minutes] $39.95 TT0004

SUN AND STARS
Students find it mind-boggling that the stars are so enormous; that to look into the night sky is to look back into time. But what about these distances: eight light minutes to the sun, but four and one third light years to the nearest star? Galaxies? The closest to Earth is over 2 million light years. Students learn how these distances are measured and how scientists are able to determine a star’s make-up. What happens when a star runs out of fuel? How big is the universe? What are black holes? Students realize quickly that science does not have all the solutions yet. [color, 24 1/2 minutes] $39.95 TT0005

SPACE SCIENCE
Space is a hostile place for human beings to travel, yet yearn to travel in it they do. This video lesson takes a look at the problems that recent space travelers have had to overcome as well as what problems future space travelers might encounter. The video explains how Newton’s Laws of Motion are employed in rocketry. This and much more is discussed: thrust, orbits, rockets, rocket fuels present and future. The program stimulates independent thinking as we contemplate if it is really practical to live on alien worlds. [color, 21 minutes] $39.95 TT0006

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