7
/2014
6
/2013
3.5
/2015
4
/1954
6
/1976
6.4
/1957
4.1
/2014
6
/NaN
6
/2009
3.2
/2011
8
/2008
4.8
/2011
10
/2024
7
/2016
2.75
/1994
10
/2025
Narrator
Self - Griffith Observatory
Self - Univ. of Southern California
Self - Co-Author, 'The Grand Design'
7.2
/1991
0
/2024
0
/2023
7.2
/2016
7
/2025
0
/2015
0
/2023
0
/2023
0
/2007
0
/2024
10
/2023
9
/2022
0
/2018
