12:25 duration 12 minutes 25 seconds
Unit 0 Exam Review
49:52 duration 49 minutes 52 seconds
ASTR 1523 Lecture 11
50:10 duration 50 minutes 10 seconds
ASTR 1523 Lecture 7
52:30 duration 52 minutes 30 seconds
ASTR 1523 Lecture 6
49:35 duration 49 minutes 35 seconds
ASTR 1523 Lecture 5