Solar System Explorer

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    Explore our neighbourhood in space

    Tap a world on the map or in the list. Read the deep-dive card — size, distance, moons, atmosphere — then try the quiz.

    This map is a learning picture — sizes and distances are not to real scale. In space, gaps between planets are enormous.

    Asteroid belt

    Planet 3 from the Sun · Our home

    Earth

    Earth is the only planet we know with abundant liquid water on the surface and life. Its atmosphere, magnetic field, and distance from the Sun make it a Goldilocks world.

    Diameter

    ~12,740 km

    Distance

    ~150 million km (1 AU — the “astronomical unit”)

    Temperature

    Just right for liquid water in many places

    Atmosphere

    Nitrogen & oxygen — protects us and makes weather

    Moons

    1 (the Moon)

    Made of

    Rocky planet with oceans, continents, and a magnetic field

    Compare

    Earth is the densest of the eight planets.

    Deep facts (1/4)

    About 71% of Earth’s surface is covered by ocean.

    Day: ~24 hours

    Year: ~365.25 days

    Tap a world

    About This Game

    Interactive labelled orbit map with distinctive planet glyphs, asteroid belt marker, and a deep-dive card for every world — diameter, distance, day/year, moons, atmosphere, composition, comparisons, and rotating facts — then a 10-question quiz.

    Top Tip

    Open Earth, then Mars, then Jupiter — notice rocky worlds vs gas/ice giants.

    Skills You Are Practising
    • Astronomy vocabulary
    • Planet comparison
    • Informational reading
    • Science curiosity
    In the real world

    Planet facts power museum visits, night-sky apps, and Year 5–6 Earth and space science.

    For parents & teachers
    • Look at the night sky together after playing.
    • Ask which world they would visit and which fact surprised them.
    • Remind them the map is not to real scale — distances in space are huge.

    Who it suits: Ages 7–15+.

    Australian Curriculum v9.0

    This game practises these content descriptions. Tap a code to see its full wording and other games for it.

    • AC9S1U02 (Year 1 Science) describe daily and seasonal changes in the environment and explore how these changes affect everyday life
    • AC9S2U01 (Year 2 Science) recognise Earth is a planet in the solar system and identify patterns in the changing position of the sun, moon, planets and stars in the sky
    • AC9S3U02 (Year 3 Science) compare the observable properties of soils, rocks and minerals and investigate why they are important Earth resources
    • AC9S4U02 (Year 4 Science) identify sources of water and describe key processes in the water cycle, including movement of water through the sky, landscape and ocean; precipitation; evaporation; and condensation
    • AC9S5U02 (Year 5 Science) describe how weathering, erosion, transportation and deposition cause slow or rapid change to Earth’s surface
    • AC9S6U02 (Year 6 Science) describe the movement of Earth and other planets relative to the sun and model how Earth’s tilt, rotation on its axis and revolution around the sun relate to cyclic observable phenomena, including variable day and night length

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