Capt. Carter, Col. O'Neill and others in “Unfinished Business”

You can actually see matter spiralling towards it..

Actually, it's called the Accretion disc.

You can see why the local population would be afraid of i...What did you just say?!

It's just an astronomical term.

You didn't think the colonel had a telescope on his roof just to look at the neighbors did you?

[to Teal'c] not initially...