WORLDWALKKepler-444 b
Orbits a star about 11 billion years old, so this tiny planet formed when the universe was less than 3 billion years old.
▶ Land on Kepler-444 bFree · plays in your browser
Gravity2.26 m/s²0.23× Earth measured
Size0.4× Earthradius measured
Mass0.04× Earthmeasured
Temperature≈ 665 °Cequilibrium temperature measured
Distance119 light-yearsfrom the Sun
Its star5,046 Kan orange dwarf, in a system of 3 stars
One year3.6 daystime to orbit its star
Discovered2015transit
What it would be like in Worldwalk imagined
Nobody has seen the surface of Kepler-444 b. The game builds it from the real numbers above: you land on bare, cratered rock with no air.
- Air: None (bare rock). Surface pressure: almost none.
- A 70 kg explorer would feel like 16 kg.
- A jump that clears 50 cm on Earth would reach about 217 cm.
- Each jump floats for seconds before you drift back down.
- With almost no air, a hammer and a feather fall side by side, and sound cannot travel.
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.