Every Planet vs Project Planet Space

Every Planet turns the whole observable universe into something you can hold in your hand. Tap once and the World Forge builds a planet that has never existed before: an ocean world wrapped in cloud, a ringed gas giant, a lava world cracked with light, a frozen wanderer far from its star. Every world is unique and generated from a single seed, so the one you just made is one you will never see again unless you keep it. The worlds are imagined. The physics behind them is not. Every planet carries an honest science dossier. Its year is computed with Kepler's third law. Its warmth comes from the real luminosity of its star and the greenhouse effect of its air. You see its distance from Earth, the year your light would arrive, the length of its day, its host star's temperature, and whether liquid water is even possible. Estimates carry honest uncertainty, the way real astronomy does. WHAT YOU CAN DO Forge a world Make a new world in a tap, or aim the Forge toward what you want to find: water, a giant, two suns, or simply something strange. Keep the ones worth keeping Save a world to your Archive, give it a name, and write a note about why you stopped there. Unsaved worlds are gone the moment you move on, so the good ones are worth catching. Read the real science Open any world's dossier for a plain, careful explanation of its orbit, star, mass, and light, tied back to the methods astronomers actually use. Learn the universe, and remember it The Observatory holds short daily recall questions built on spaced repetition, so real ideas actually stick. Track a gentle streak and watch how much of the sky feels familiar. Travel outward Every discovery carries you about eight percent deeper into space, past real landmarks, all the way to the edge of the observable universe. Go deeper in the Observatory An orbit lab to move a world through space, a field guide to the stars that make planets possible, an atlas of twelve genuinely strange real worlds, a guide to how we find planets we cannot see, and the big numbers that put it all in scale. QUIET BY DESIGN No account. No ads. No tracking. Everything you make stays on your device. Optional ambient audio for the long trip outward. Built to be calm, factual, and yours. There are around seven hundred quintillion rocky planets out there. Humanity has confirmed about six thousand. Every Planet is a small, honest way to feel that scale, one world at a time.

Project Planet - an interactive map of our solar system How much would you weigh on Jupiter? Why does a day on Mercury last longer than its year? Project Planet turns space facts into a fingertip-sized journey. Scroll through all nine planets (Pluto included), feel each world's pull on your own body, and explore the numbers astronomers have spent decades collecting. Highlights - Sticky scroll across the system: from Mercury to Pluto, each planet stays centred long enough for you to take it in. - You, on every world: enter your weight and age once and watch them recalculated by each planet's gravity and orbital period. - Five rich widgets per planet: surface temperature with reference markers (Antarctica, freezing, boiling), atmospheric pressure with composition chart, travel times from Earth from walking up to the speed of light, gravitational force with everyday objects (phone, backpack, car), and an interactive pressure simulator with phase changes for water, oxygen, CO2, hydrogen, nitrogen and mercury (Antoine equation under the hood). - Six languages: Czech, English, German, Slovak, Spanish and French, auto-detected from your device. - Metric or imperial: switch instantly; weights, temperatures and distances follow your preference. - Crafted to feel like a small cosmic museum: dark cosmic theme, hand-tuned typography, subtle scroll choreography, and a right rail that lets you jump to any planet. - Built on real data: gravitational accelerations, orbital periods, NASA mean temperatures, atmospheric compositions and substance phase transitions. Requires an internet connection. The app runs as a continuously updated webview and uses native iOS capabilities such as haptic feedback to add a tactile dimension to your interstellar journey.