While heading through the Stargate, Captain Samantha Carter was amazed to see that the fluctuations in the event horizon were visible and appearing as ripples in water. (Stargate) (SG1: "Children of the Gods")
- In the original movie, the event horizon perfectly reflected what was in front of it, like actual water. This feature was not carried over to the series.
- If something is halfway through the event horizon, a Stargate will try to keep the wormhole open, but can be overwritten, effectively chopping of and disintegrating whatever is in the way. (SG1: "The Enemy Within, SGA: Thirty-Eight Minutes)
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