About The Codex
Welcome to The Exoplanet Codex—a passion project dedicated to the most mind-blowing exoplanets we’ve discovered.
I’m Justin, a designer and space geek from Northern Michigan. On clear winter nights up here, the sky is so dark you can see the Milky Way like a river of stars. That’s what inspired this site: to share the wonder of distant planets with everyone—kids dreaming of alien oceans, adults geeking out over the science, and anyone who’s ever looked up and thought “what’s out there?”
I focus on the worlds that are well enough known to picture:
- Earth-Sized: Rocky worlds like our own
- Sub-Neptunes: the in-between planets, bigger than Earth, smaller than Neptune
- Ice giants: Neptune-class worlds of ice, gas, and wild skies
- Gas giants: extreme worlds of molten glass rain, diamond cores, or frozen rogue drifters
- Habitable zone: planets where liquid water — and maybe life — could exist
All exoplanet art created with Grok and Grok Bot by xAI. All facts come from NASA’s Exoplanet Archive and missions like Kepler, TESS, JWST, and Roman. Additional artist concepts are public domain from NASA/JPL-Caltech.
