sagansense:[Carl Sagan’s Christmas Lectures || The Planets || 1977]
![sagansense:[Carl Sagan’s Christmas Lectures || The Planets || 1977]](https://64.media.tumblr.com/15dedb1ca26b62e1ae86a69a643ad612/tumblr_mydrgqqdUH1r01w8mo2_500.gif "sagansense:[Carl Sagan’s Christmas Lectures || The Planets || 1977]")
![sagansense:[Carl Sagan’s Christmas Lectures || The Planets || 1977]](https://64.media.tumblr.com/0d6b12b619a835371fe84ff9bcd3a334/tumblr_mydrgqqdUH1r01w8mo1_500.gif "sagansense:[Carl Sagan’s Christmas Lectures || The Planets || 1977]")
sagansense:[Carl Sagan’s Christmas Lectures || The Planets || 1977] -- source link
#science#sci-lit#scientific literacy#education#carl sagan#astronomy#astrophysics#solar system#planetary science#sagansense