🟢 Ages 5–8 🔵 Ages 8–12
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Space Explorers

Launch rockets, explore planets, watch the Moon change shape, and come face to face with a black hole! The universe is enormous — and all of it is waiting for you.

8 simulations Ages 5–12 Astronomy • Space Physics
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🌌 Space Simulations

Blast off into the cosmos — no spacesuit required!

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🟢 5+ 🎮 Interactive
My Solar System
8 planets orbit our Sun in this colourful space view. Click any planet to freeze it — a card pops up with its name, number of moons, temperature and a fun fact. Speed up time from normal to 1000× faster.
💡 If Earth were a marble, the Sun would be a football field away and 109 marbles wide!
Three.js Kepler Orbits 3D
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🔵 8+ Detailed
Solar System 3D
Full 3D solar system with realistic orbits, Saturn's rings, moons and an asteroid belt. Click a planet to fly the camera to it. Bloom effect makes the sun glow beautifully. Spot Jupiter's 4 big moons!
💡 Saturn's rings are only ~10 metres thick but 280,000 km wide — thinner than a sheet of paper at this scale!
Three.js Bloom Effect 3D
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🔵 8+
Orbital Mechanics
Watch how gravity bends the path of a spacecraft — the gravity assist manoeuvre! See Lagrange points where a spacecraft can "park" next to Jupiter. Real physics used by NASA for every mission.
💡 The Voyager probes used Jupiter's gravity like a sling — the planet added speed for free!
N-body Lagrange Points Canvas 2D
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🔵 8+
Star Life Cycle
Watch a star's entire life: it starts as a cloud of gas, collapses, shines for billions of years, then explodes as a supernova! Choose any mass from 0.5 to 20 Suns. Live HR diagram shows the evolutionary track.
💡 Every atom of iron in your blood was forged inside a star that exploded billions of years ago!
HR Diagram Stellar Physics Canvas 2D
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🔵 8+
Spiral Galaxy
80,000 stars forming the spiral arms of a galaxy — right in your browser! Adjust the number of arms, the bulge size and the spread of stars. Use bloom to make it glow like a real galaxy photo.
💡 Our Milky Way has 200–400 billion stars. The nearest star (Proxima Centauri) is 4.24 light-years away!
Three.js 80k Stars Bloom
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🟢 6+ ✨ New
Why Day & Night?
Watch the Earth spin — one side faces the Sun and gets daylight, the other is in shadow. Move your location from the equator to the poles and see how day length changes!
💡 Earth spins at 1,670 km/h at the equator — faster than a racing car!
Earth Rotation Day & Night Canvas 2D
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🔵 8+ ✨ New
Telescope: 8 Planets
Look through a telescope eyepiece at all 8 planets! Zoom in to see Saturn's rings, Jupiter's stripes and Neptune's blue colour. Each planet shows its moons and a fun fact.
💡 Saturn's rings are made of billions of ice chunks — from tiny grains to house-sized boulders!
Telescope View 8 Planets Canvas 2D
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🔵 9+ ✨ New
Black Hole vs Star
Compare the sizes of stars and black holes, then watch spaghettification happen! See a star orbit, then get swallowed. Watch stellar collapse create a new black hole.
💡 Spaghettification is a real word — and a real thing that would happen if you fell into a black hole!
Black Hole Spaghettification Canvas 2D

🔭 How Big is Space?

If Earth were a marble (12 mm), here's how the rest of the solar system compares

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Earth
Your marble — 12 mm across
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Sun
A large beach ball — 1.4 metres across
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Jupiter
A tennis ball — 140 mm across
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Moon distance
Your desk width — 38 cm away
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Mars distance
Half a football pitch — 85 m away
Nearest star
Tokyo to London — 9,600 km away!

🪐 Planet Order Challenge

Drag the planets into the correct order from the Sun — can you get all 8?

Pick up a planet from the tray and drop it into the numbered slot.

🧪 Space Quiz!

5 questions — how much do you know about space?

📏 How Far Away Is It?

Drag the slider from Earth all the way to the edge of the observable Universe!

EarthMoonSunMarsJupiterPlutoNearest starMilky WayAndromedaEdge of Universe
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Earth
0 km — you are here!
Our home planet — the only place we know has life. It's 12,742 km across and orbits the Sun once every 365.25 days.

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About Space for Kids Simulations

Planets, rockets, stars, and space exploration — for young explorers

Space for Kids simulations introduce the wonders of astronomy and space science to young learners through age-appropriate interactive models. Colourful planet explorers let children orbit the solar system, see relative planet sizes, observe ring systems, and learn fun facts about each world — all without any maths or reading required beyond simple labels and icons.

Rocket simulation toys let children adjust thrust and angle to get a little rocket to the Moon, building an intuitive sense of trajectory and gravity without needing equations. Star-formation and constellation visualisers let children connect the dots of real star patterns and learn their mythological stories. Every simulation features large, easy-to-click controls and instant satisfying feedback, making science engaging for primary-school children and enthusiastic beginners of all ages.

Each simulation in this category is built with accuracy and interactivity in mind. The underlying mathematical models are the same ones used in academic research and professional engineering — just made accessible through a web browser. Changing parameters in real time and observing the results is one of the most effective ways to build intuition for complex scientific and engineering concepts.

Key Concepts

Topics and algorithms you'll explore in this category

Solar SystemPlanets, orbits, and relative sizes for children
RocketsAction-reaction thrust with cartoon rocket animations
Moon PhasesLunar cycle synodic period and illumination
Black HolesGravity wells and light bending, simplified
Shooting StarsMeteor ablation in the atmosphere
ConstellationsStar patterns and simplified celestial sphere

Frequently Asked Questions

Common questions about this simulation category

What space simulations are designed for kids?
Solar system orbit display, cartoon rocket launch, Moon-phase cycle, black hole gravity well, shooting star (meteor) animations, and constellation viewer — all designed for ages 7–12.
How does the Moon phases simulation work for children?
It shows the Moon orbiting Earth, with the sunlit half always facing the Sun. The child sees the illuminated fraction that matches each phase — new, crescent, quarter, gibbous, full — animated at an accelerated rate.
Is the space content scientifically accurate?
Yes — orbital periods, planet sizes (to scale where displayable), and phase geometry are all physically correct, just presented with colourful cartoon visuals appropriate for young learners.