In an alternate reality, the Roswell UFO Incident likewise occurred as Doctor Samantha Carter recognised Jack's reference to the city when he described the Asgard as "Roswell grey." (SG1: "Point of View")
Behind the scenesEdit
In the real world, the Roswell incident is widely believed to be a hoax (except by some UFO proponents and conspiracy theorists). It is unknown whether this crash was real in the Stargate universe or also a hoax, although the resemblance of the Asgard to the classic "grey" is uncanny, and the Asgard are known to have monitored Earth at various periods in history.