The Hadean

The Hadean eon began with Earth's formation about 4.6 billion years ago and ended roughly 3.8 billion years ago. Hades is the Greek word for "Underworld," referring to conditions surmised on Earth at that time.

Listen to The Hadean eon by following these instructions.

1. Line the Dogleg Tunnel with flame throwers.
2. Seal both ends of the tunnel.
3. Fill the tunnel with a composition of 70% Carbon Dioxide, 11.5% Methane gas, 8.2% Hydrogen gas, 7% Water Vapour, and 3.3% of a noble gas of your choice.
4. Ignite the flame throwers and heat the tunnel atmosphere to 230 degrees Celsius.
5. With megaphones and microphones on each end, have a conversation with a friend through an atmosphere four billion years old.