M51 - The Whirlpool Galaxy - Deep Sky Videos
10:53
A Fascinating Double Star (Albireo) - Deep Sky Videos
11:19
The G-Dwarf Problem - Sixty Symbols
11:51
A Lucky Cluster of Middle-Aged Stars - (Caldwell 1 or NGC 188) - Deep Sky Videos
22:59
The Dome Paradox: A Loophole in Newton's Laws
8:12
Double Quasars - Deep Sky Videos
8:42
Biggest and Smallest Stars - Sixty Symbols
12:55
A Strange Map Projection (Euler Spiral) - Numberphile
1:09:42