What Triggered the Big Bang? | How the Universe Works
9 years ago 00:24:50 706
7 months ago 01:01:27 1
4 years ago 00:07:45 2
6 months ago 00:08:07 1
2 years ago 01:17:22 1
7 years ago 00:01:57 3
3 years ago 00:24:28 1
1 year ago 00:03:23 1
2 years ago 00:10:57 2
1 year ago 00:09:24 2
5 years ago 00:03:46 8
7 years ago 00:05:20 1
7 years ago 00:25:01 1
1 year ago 00:03:27 3
2 years ago 00:49:10 1
4 years ago 00:07:32 1
2 years ago 00:26:56 1
2 years ago 00:29:48 16
4 years ago 00:11:56 1
9 years ago 00:02:01 826
12 months ago 00:29:03 6
2 years ago 00:07:02 1
1 year ago 00:28:26 1
11 years ago 00:26:31 51
