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COSMIC CIVILIZATIONS / SPACE ACADEMY

Explore the Universe.
Expand Your Knowledge.

A free, interactive journey through astronomy and space exploration. Follow your curiosity, test your understanding, and make every discovery count.

Start Learning ↗Daily Space Challenge
6 learning tracks30 complete lessonsFree to explore

SIX WAYS INTO THE COSMOS

Find your next horizon

Browse all tracks ↗
01 / LEARNING TRACK

Beginner · 5 lessons

Astronomy Fundamentals

Build a mental map of the cosmos, from nearby worlds to the light arriving from distant galaxies.

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02 / LEARNING TRACK

Beginner · 5 lessons

Planets and Moons

Compare worlds, investigate oceans beneath ice and learn how we discover planets around other stars.

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06 / LEARNING TRACK

Beginner · 5 lessons

Space Exploration

Read the evidence from exploration and learn how scientific missions turn questions into measurements.

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A LITTLE EVERY DAY

Your daily space challenge

Four questions. One shared UTC date. A fresh opportunity to connect ideas across astronomy, with explanations after every answer.

Take today’s challenge ↗

KNOWLEDGE WORTH KEEPING

Build your constellation of achievements

Start with First Lesson Completed. Work toward Solar System Explorer, Stellar Scientist and Academy Graduate. Every badge has a clear condition.

See badges and XP rules ↗

How the Academy works

  1. Explore a lesson

    Read an explanation, work through an example and follow the primary sources.

  2. Test your understanding

    Answer a track’s knowledge quiz. A score of 70% passes; retries help you learn.

  3. Keep your progress

    Earn XP once for each milestone and download a personal-information-free achievement card.

Choose your depth

Beginner

Build vocabulary and visual intuition. No prior astronomy study is assumed.

Intermediate

Connect physical mechanisms, compare systems and reason through engineering trade-offs.

Advanced

Interpret indirect evidence and model limitations. Conceptual depth rather than a university mathematics prerequisite.

Take the next step beyond the lesson

Inspect the technology in Space Vault or connect orbital concepts with observations and schedules in Mission Control.

Explore Space Vault ↗Open Mission Control ↗

Free, self-guided learning. Progress is saved only in this browser on this device; no account sync. Educational sources are credited, without implying agency endorsement.