Kids solar system learning app

Explore planets through playful space missions.

Choose a planet, fly through the solar-system map, unlock bite-size facts, and answer quick questions after each stop.

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missions done

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NASA

real images

Mission map
Orbit speed · 1.0x

Current planet stop

Blue Marble from Apollo 17 - Earth

Blue Marble from Apollo 17

Image credit: NASA

Earth

Rocky planet

Earth is our blue home. It has air to breathe, oceans of water, and the right warmth for life.

Mission clue

Spot Earth, then find its two rocky neighbors: Venus and Mars.

Type

Rocky planet

Radius

6,371 km

Moons

1

Year

365.25 days

Planet stops

Choose where to fly next.

Each stop opens a short lesson, a mission clue, and a quick quiz.

Dwarf planet side quests

Go beyond Neptune.

Learn about Ceres, Pluto, Haumea, Makemake, and Eris with NASA-sourced images and facts.

Dawn LAMO View of Ceres

Ceres

Ceres is the only dwarf planet in the inner solar system.

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Global Map of Pluto

Pluto

Pluto has a heart-shaped region on its surface.

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Haumea learning illustration

Haumea

Haumea spins so fast that a day there is only about four hours.

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Makemake and its moon

Makemake

Makemake has a small moon discovered with the Hubble Space Telescope.

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Hubble view of Eris and Dysnomia

Eris

Eris helped scientists rethink what counts as a planet.

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