Exoplanets: TRAPPIST-1 g

• Planet: TRAPPIST-1 g
• Sequence: 14
• Saved image path: My-Library/Images/Collections/Exoplanets/Images/Exoplanets_14-TRAPPIST-1-g.png
• Model: built-in gpt-image (recovered from session transcript)
• Generation date: 2026-07-14

Planet Profile

• Planet type: terrestrial
• Host star: ultra-cool red dwarf
• Outer planet in the TRAPPIST-1 system
• Atmosphere unknown

Environment

• Gravity: near Earth to somewhat above Earth depending on model
• Climate: cold unless greenhouse atmosphere exists
• Surface: possible ice, rock, or ocean beneath ice
• Lighting: dim red

Creature Design Direction

Ice-world burrowers, subsurface ocean life, thermal-vent ecosystems.

Planet / Habitat Depicted

The render shows a compact, powerful under-ice burrower near geothermal cracks, with pale translucent skin, bioluminescent throat sacs, clawed digging limbs, red-lit ice, dark basalt, vapor, meltwater, and faint vent ecology.

Sources

• Data provided in the collection plan (Prompts/generate-exoplanets-collection.md); measurements are from published exoplanet catalogs. No web research performed for this collection.

Final Prompt Used

Create a scientifically plausible alien creature from TRAPPIST-1 g. Core seed: A subsurface ice-world creature from TRAPPIST-1 g, cold terrestrial exoplanet, pale translucent skin, heat-sensitive organs, clawed digging limbs, bioluminescent throat sacs, living near geothermal cracks beneath red-lit ice, realistic xenobiology illustration. Depict a terrestrial outer planet around an ultra-cool red dwarf with unknown atmosphere, near-Earth to somewhat-above-Earth gravity, cold climate unless greenhouse atmosphere exists, possible ice/rock/ocean-beneath-ice surface, and dim red lighting. Make the creature compact, strong, non-humanoid, adapted for digging and bracing in ice tunnels near geothermal cracks, with sealed translucent skin, heat-sensitive organs, protected low-light senses, and bioluminescent throat sacs. Show red-lit ice ceiling, black basalt, vapor mist, meltwater pools, microbial mats, scrape marks, and physical contact with the terrain. Use natural-history field-guide realistic scientific illustration, 3:2 wide landscape, no text, no logos, no real people, no planet sphere in the sky.