Adrian

Location from Project Hail Mary by Andy Weir

The CO2-choked planet where Astrophage breed and their natural predator was waiting — the answer to everything, orbiting a star no one was watching.

Also known as: Tau Ceti e, Adrian

What They Know

• Mass 3.93x Earth, diameter 10,318 km, atmosphere 91% CO2 / 7% methane / 1% argon
• Astrophage breeding ground — they migrate here from Tau Ceti to reproduce using atmospheric carbon
• Home of Taumoeba, the natural Astrophage predator that keeps the local population in check
• Atmospheric sampling here led to the discovery of the Taumoeba solution

Connections

• orbits — tau_ceti
• breeding_ground_of — astrophage
• home_of — taumoeba

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