Bell's Theorem, you make with comet tail dark ?
No, They are molecular clouds. I increased the galaxy brightness to make the molecular clouds look more prominent and lined them up to blend in with night side of planets to appear connected as a single object. I thought it made them look like they were emitting smoke.
An example. When you load it, just increase the galaxy brightness and zoom in and you will get the first image.
Place "Planet lined up with molecular cloud"
Body "RS 5514-1-6-207926-536 A6"
Parent "RS 5514-1-6-207926-536 A"
Date "2053.08.15 16:48:15.72"
Pos (-00000000000529EFFB231FBAF98972A1 +000000000028B0FD42760C082722DCB6 -000000000029B1806340CED08EAFA326)
Rot (0.3402850038130748 0.9019300311518455 -0.2122290065235498 0.1602722180429091)