Deciphering Signs and Sigils

The research team dispatched to the boundary of the known universe reported back with a strange account. Though the barrier between the Universe and 'That Which is Outside' cannot be physically traversed, it can be observed. Shifting like a mirrored reflection, this strange being and spheres with pulsating markings were observed by 3 of the 5 crew members. Though differing in account, this image was compiled using the descriptions the 3 crew members logged in their findings system. The other 2 crew members were unable to see anything than absolute blackness. The markings are currently being studied by the Center for Xenolinguistics. No further information is available.