Speaker Videos

A Tiny Grandma Makes a Big Impact in “Big Sonia” | KCTS9

Big Sonia Trailer

Crash Course Astronomy Episode 10: The Sun

Crash Course Astronomy Episode 9: Introduction to the Solar System

Crash Course Astronomy Episode 8: Tides

Crash Course Astronomy Episode 7: The Gravity of the Situation

Crash Course Astronomy Episode 6: Telescopes

Crash Course Astronomy Episode 5: Eclipses

Crash Course Astronomy Episode 4: Moon Phases

Crash Course Astronomy Episode 3: Cycles in the Sky