Ja, det här diskuteras i universum vid ett par tillfällen.
CARTER: Daniel, this is uncanny. It looks just like the descriptions of the Roswell Greys back home.
DANIEL: I guess there's some truth to those stories after all.
CARTER: You think the Asgards may have visited Earth?
DANIEL: Why not?
och
SAMANTHA: Well, this is incredible. If the Asgard could design this to give the Gate extra juice, then they're just the little green men we're looking for.
O'NEILL: They're grey actually. Roswell grey, to be exact.
Intressant var ämnet för Roswell-incidenten en viktig del av Fandemonium-novellen Stargate SG-1 : Roswell , som innehöll tidsresor och omfattande engagemang / medling av Asgard Loki i jordens historia. Utan att önska att förstöra plotlinjen, visar det sig att Roswell-graysna var
a set of Asgard-Human hybrids who died in their escape pods when they crash-landed at Roswell, New Mexico.