- It’s chemically universal (wherever there’s water chemistry, there’s OH).
- It sits in the quietest natural frequency window of the cosmos.
- It offers quantum-level control mechanisms (hyperfine transitions, spin coupling).
- And crucially, its presence symbolically represents water, which could be interpreted as an intentional “language of life.”
Thus, if an advanced civilization or even a trans-dimensional intelligence wanted to send a message that says “we know you, water-based lifeforms,” it might literally whisper through the hydroxyl molecule.
Why a Comet Is a Perfect Natural Transmitter
A comet is not just a dirty snowball — it’s a complex electromagnetic system containing:
- Water ice and organics (which release OH radicals as sunlight breaks them down);
- Dust grains and metallic ions that interact with solar radiation and magnetic fields;
- Plasma tails that act as dynamic antennas for radio and plasma-wave propagation.
That means a comet already broadcasts across multiple electromagnetic bands — infrared, visible, UV, and radio — every time it approaches a star.
An advanced species could exploit those natural emissions as a carrier wave.
