Stargate follows the adventures of the scientists and military of Stargate Command, exploring the galaxy through a network of gates left by ancient civilisations.
Read more about Stargate at Stargate Wiki.
- Artificial wormholes 
- FTL - Hyperspace 
- Humanoid aliens 
- Non-humanoid aliens 
- Alternate realities 
- Time travel 
- Symbiosis 
- ↑ Using a stargate creates an artifical wormhole between two gates
- ↑ The Asgard and later human ships are capable of travelling through extra-dimensional space using hyperdrive
- ↑ The Unas and Wraith have humanoid form
- ↑ The Goa'uld are snake-like parasites.
- ↑ The Quantum Mirror allows people to travel between alternate realities
- ↑ A wormhole passing through a solar flare will travel through time as well as space.
- ↑ Spoiler - hover over to revealThe Tok'ra are the same species as the Goa'uld, but have a symbiotic rather than parasitic relationship with their hosts.