“singularity” refers to the great mystery about black holes and the big bang in general. Scientists try to find out what the source of our universe is and how everything works and comes together.
And maybe even the theory of the big bang has to be rewritten since modern space telescopes found galaxies that seems to be older than the calculated birth of our universe.
Listen to the album in full 24 bit quality on Bandcamp: https://ngc-224.bandcamp.com/album/singularity