Marcia Zappa

Discusses eclipses, such as the alignment of the sun, Earth, and the moon, types of eclipses including partial, total, and annular solar eclipses as well as partial and total lunar eclipses.

Teaches readers about different types of constellations and how they are affected by Earth¿s tilt and orbit, naming of constellations in ancient and modern times.

Discusses NASA and its major accomplishments in space travel, beginning with the space race between the Soviet Union and the United States, the first space launches, the establishment of NASA and its early missions, Project Apollo and the moon landing, and NASA¿s future goals.

Discusses the topic of space exploration, beginning with the space race between the Soviet Union and the United States, the first space launches, early astronauts, the first moon landing, and future space goals.