Upload date
All time
Last hour
Today
This week
This month
This year
Type
All
Video
Channel
Playlist
Movie
Duration
Short (< 4 minutes)
Medium (4-20 minutes)
Long (> 20 minutes)
Sort by
Relevance
Rating
View count
Features
HD
Subtitles/CC
Creative Commons
3D
Live
4K
360°
VR180
HDR
41 results
Life on Earth is made possible by its proximity to the Sun. Yet even with the protection of our magnetic field, we face a daily ...
5,606 views
Streamed 6 years ago
Presented by Dr. Shane Larson The length of a human life barely registers on the scale of cosmic time. In spite of our relatively ...
1,874 views
Streamed 5 years ago