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Artist's commentary
A Monster Swimming in the Sky
Out of nowhere a giant, grotesque creature fills the air force radar screens.
It moves silently twisting its translucent blue-green tube shaped body.
When visible it shows up on radar, but if it turns invisible it can disappear not just from radar but any observation equipment.
Its behavior is very simply, and it always avoids moving at night.
It is unclear what it is and where it came from, or if it was just always there.
This image is of a formation of F-15J-II jets (pixiv #4351903) that intercepted it.
For about a month after this, the "monster" swam the skies raising hell all over the world. And then, just as it had appeared, all of a sudden it was gone.
Since then, no country has been able to capture it.