astronomy
- Telescope Building with John Dobson
- Flashes from Beyond the Milky Way
- Astrophotography without a star tracker
- Wildest Weather in the Cosmos
- Star Size Comparison 2
- Finetuned Universe
- Thunderbolts of the Gods | Official Movie
- Cosmic rays and cloud formation
- Weird Planets
- How a Giant Telescope Works
- The Electric Universe
- 'ScienceCasts
- National Geographic – Inside the Milky Way (2010) Bluray 1080p
- Biosphere – a Organism with a Collective Consciousness