Nibiru

Nibiru is the secret lab of the Dark Star Lord's Pyramid within the Dark Star Lord's Mausoleum. You can only explore it wearing the Clay Doll Outfit, or you will be sucked into Outer Space and die immediately. You must have also already solved the The Dark Star Lord's Pyramid Puzzle to reach this area.

Nótt Mantra

 * Location: (Middle Room)
 * Break the Death Seal; Scan with Snapshots.

Absorb the Dissonance

 * Location: (Top-middle Room)
 * Use all 12 Crystal Skulls on the skeleton bodies throughout this entire area. Then, with a fully-charged Mjolnir, stand on the Master Skull and zap all 3 lightning statues simultaneously (note: you can charge your Mjolnir by getting shot by the turrets in the side chambers). Swallow the Dissonance that appears with the Beherit.

Anunnaki

 * Location: (Top-right Room)
 * Scan the top-right of the room.