- About PSI
"Atsa" is the Navajo word for "eagle." The team chose this name in honor of the State of Arizona, where PSI was founded, and the Navajo people from whom we take inspiration and who were in this region long before PSI.
Elements of Navajo iconography are used to show the properties of the Atsa Observatory. An eagle (the "Atsa") flies close to the Sun (the yellow disk) to show that we can look close to the Sun; the background is black with stars, to show that we are flying in space. The Atsa flies on a rainbow, just as the Twin Warriors of Navajo mythology traveled. The rainbow also represents the full spectrum to which we have access above the atmosphere. The face or mask superposed over the Atsa represents the Sun Eagle and is a common motif in Navajo sand painting. On the mask, the four sacred mountains and their colors represent the four directions, North, South, East and West: Atsa flies in all directions. The horizontal line on the mask represents the horizon, the division between Earth and sky. The vertical line represents traveling into the Universe.