Professor Photon explains light and the electromagnetic spectrum

Astronomer James Kaler shares his knowledge and enthusiasm for stars

The history & science of comets; results of Halley's 1986 visit

The winter sky; brightness, color, composition, and how stars evolve

About stars and the sun; how the sun affects our planet

Solar & lunar eclipses in history; cause of eclipses; viewing safely

Ancient Astronomy; building & use of pyramids; Stonehenge

The discoveries made by Hubble since being successfully repaired

The fall sky; the Milky Way & Andromeda Galaxies; types of galaxies

How humans' view of the universe has changed throughout the history