There are are at least seven artists named Nebula:
These are photos from concerts where Nebula played, so they may be of other bands that played the concert as well.
Hellfest 2024 Jun 27 - 30, 2024 Clisson, Pays de la Loire, France Uploaded by Rock And Metal Music Videos Credit: Rock and Metal Music Videos
Heavy Psych Sounds Fest / Unida / Nebula / Dopelord / Giöbia / Hippie Death Cult / Margarita Witch Cult Oct 27, 2023 Berlin, West Germany Uploaded by Stephenhuerta