WORLDWALKKepler-121 b
Kepler-121 b is a hot large super-Earth orbiting a Sun-like star 1,665 ly away. A year there lasts 3.2 days. It was found using the transit method: it dims its star as it passes in front. Planets this size may be wrapped in thick gas; the game imagines it as a solid or water world you can walk on. Note: its mass is estimated from its size.
What it would be like in Worldwalk imagined
Nobody has seen the surface of Kepler-121 b. The game builds it from the real numbers above: you land on a molten surface of lava seas.
- Air: rock vapor · a guess. Surface pressure: 0.002 bar.
- A 70 kg explorer would feel like 78 kg.
- A jump that clears 50 cm on Earth would reach about 45 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.
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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.