WORLDWALKKepler-1638 b
Kepler-1638 b is a temperate water-rich world orbiting a Sun-like star 4,976 ly away. A year there lasts 259.3 days. It was found using the transit method: it dims its star as it passes in front. Its temperature could allow liquid water, which makes it a habitable-zone candidate, not a confirmed habitable world. 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. It sits where a planet could be warm enough for liquid water, in the so-called habitable zone.
What it would be like in Worldwalk imagined
Nobody has seen the surface of Kepler-1638 b. The game builds it from the real numbers above: you land on a deep ocean under a hydrogen sky.
- Air: Rich in H₂ (hydrogen), H₂O (water vapor) · a guess. Surface pressure: 29 bar.
- A 70 kg explorer would feel like 83 kg.
- A jump that clears 50 cm on Earth would reach about 42 cm.
- The air is about 29 times denser than at sea level on Earth: thick enough to slow a falling rock.
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 Kepler-1638 bSimilar worlds nearby
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.