WORLDWALKGliese 12 b
A temperate world between Earth and Venus in size and warmth, 40 light-years away. It is a key target for testing whether such planets keep their atmospheres.
▶ Land on Gliese 12 bFree · plays in your browser
Gravity10.78 m/s²1.1× Earth measured
Size0.93× Earthradius measured
Mass0.95× Earthmeasured
Temperature≈ 42 °Cequilibrium temperature measured
Distance39.8 light-yearsfrom the Sun
Its star3,328 Ka red dwarf
One year12.8 daystime to orbit its star
Discovered2024transit
What it would be like in Worldwalk imagined
Nobody has seen the surface of Gliese 12 b. The game builds it from the real numbers above: you land on dry, dusty desert rock.
- Air: thin CO₂ (carbon dioxide), N₂ (nitrogen) · a guess. Surface pressure: 0.7 bar.
- A 70 kg explorer would feel like 77 kg.
- A jump that clears 50 cm on Earth would reach about 46 cm.
Pack the right suit. Choose 3 of 6 modules (cooling, heating, pressure hull, extra oxygen, radiation shield, jetpack), complete 3 surveys and get back to the lander before your oxygen runs out.
Play Gliese 12 bSimilar worlds nearby
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Sizes, masses, temperatures and orbits come from the NASA Exoplanet Archive (Planetary Systems Composite table). Values marked estimated are calculated from the other measurements; the surface and air are imagined for the game.