Item #: SCP-CN-1999
Object Class: Euclid
Special Containment Procedures: As SCP-CN-1999 is suspected to have resurfaced, Site-Kepler-22-05 has begun investigation.
Description: SCP-CN-1999 is a phenomenon produced by imaginative behavior of humans regarding the sky. Due to the reduction in such behavior caused by mass extraterrestrial migration of humans and major advances in technology, SCP-CN-1999's rate of appearance has rapidly decreased, leading to the collapse of all existent SCP-CN-1999 at the end of the 31st century and the neutralization of all remaining instances in the 36th century.
Recently, on the newest migration planet Kepler-22B, a subject uploaded an image and text suspected to relate to SCP-CN-1999 onto the thought network. The textual content is as follows:
The last few days, me and my friends took a trip to Earth. That planet, which is said to be the origin of human civilization, is still filled with legacies, ruins, grasslands and primitive houses. Not many people live there. But it's perhaps because of that that we saw for the first time in our lives an ocean horizon. We set out onto the ocean, clear and pure down to the seafloor, and we saw many organisms we'd never seen before; the water and the sky were so close together, and just like that they leaped from the ocean to the sky.
On my home planet, the sea and the sky are divided by dense cityscape. Even where a small quadrangle of sky peeks through, it's filled with the newest spaceships. And today, I saw in that colorless gap brilliant, multicolored life - fish flying in the sky. My reason tells me that these can't possibly be real organisms. Fish are born in the sea, live their whole lives in the sea, and die in the sea. But the depths of my heart lie in fantasy - perhaps, in that technologically undeveloped era, on that planet where the sky and sea connect, they had once swam in the sky, too.
In the following months, more such eyewitness accounts occurred; the observed SCP-CN-1999 shapes were not only similar, but all related to planets on which humans have previously lived. As such, the Object Class has been re-upgraded to Euclid and new research is currently planned.