Together, this manuscript and the Dresden Codex proved essential in the later decoding of the Maya's calendar system and their advanced understanding of astronomy and mathematics. Actual ...

For discussion questions and lesson plans, go to the Energy Lab collection on PBS LearningMedia ... Check the calendar of events on the NOVA Labs Facebook Page to see who is available ...

With all the sightings of strange objects in the sky, people have been wondering for decades what these things can be.

NOVA is the most popular primetime science series ... and our universe. The PBS series is also one of the most widely distributed science programs in the world, and is a multimedia, multiplatform ...