• Astronomy Course
Lecture 3 of Dr. Bruce Betts' online Introductory Planetary Science and Astronomy course covers optical, radio, and space telescopes, eclipses, and an introduction to the Moon including lunar tides, phases and impact cratering. Recorded at California State University Dominguez Hills.
Become a member of The Planetary Society and together we will create the future of space exploration.
Help advance robotic and human space exploration, defend our planet, and search for life.