Nýchtaterra

Nýchtaterra is a dark matter planet composed of low-mass atomic dark matter, up to calcium, including life’s building blocks. It has no dense core and high kinetic energy as dark matter collapses inward due to its own gravity.

Complex intelligent life exists as gas-filled beings resembling siphonophores—colonial marine organisms. These beings have advanced technology, primarily gravity-sensitive instrumentation.

To humans, Nýchtaterra remains undetectable until an object nears and feels its gravitational pull.