|Out of universe information|
Mentioned in "Message in a Bottle"
In 1998, SG-1 had returned from the planet P5C-353 and brought the Virus Orb to Earth for study. Major General George S. Hammond asked Colonel Jack O'Neill if everything went as planned. O'Neill replied, "Oh, a small step but a big step, that type of thing, sir," which was based on Neil Armstrong's famous words while on the moon. (SG1: "Message in a Bottle")