Discusses how the achievements of the man credited with discovering America led to the present-day celebration of his landing in the New World.

Discusses Christopher Columbus's exploration of America, focusing on his first expedition aboard the three famous ships.

Describes some existing and future telescopes and what they can tell us about outer space, with particular emphasis on the "Edwin P. Hubble Space Telescope," as big as a bus, able to spot a lit candle a quarter of a million miles away, and which will begin orbiting Earth in the late eighties, gathering information previously unavailable to us.

Traces the life of the famed Florentine explorer who discovered Brazil, Venezuela, and the Amazon River, and had two continents named for him.