Astro Story

About Astro Story

Journey through 4,000 years of astronomical discovery.

Astro Story is a 100% offline learning app that brings the history of astronomy to life — one day at a time. Every day, the "On this day" feed highlights real events from the history of sky-watching, from ancient star catalogues to modern space telescopes.

A LIBRARY OF 57 IN-DEPTH STORIES
Explore the people, instruments and ideas that changed how we see the universe, organised into four eras:
• Ancient Skies — Babylonian records, Mayan Venus tables, Antikythera mechanism, Zhang Heng's seismoscope and more
• Renaissance & Revolution — Copernicus, Tycho Brahe, Galileo, Kepler, Newton and the first great observatories
• The Modern Cosmos — Neptune found on paper, Einstein's relativity, Hubble's expanding universe, the discovery of Pluto
• The Space Age — Sputnik, Apollo 11, Voyager, the Hubble Telescope, Cassini, Curiosity, Chang'e 4 and the James Webb

BUILT-IN TIMELINE
Browse 71 curated milestones spanning four millennia. Each event links straight to the full story behind it.

TEST YOURSELF
Every story includes a 3-question quiz with instant scoring and one-tap retry. Track your reading progress and quiz points in Your Stats.

FOUR LANGUAGES, ONE TAP
Every story, fact and quiz is fully translated into English, French, Spanish and German — switch anytime in Settings.

FACTS YOU CAN VERIFY
Each story lists key facts with the year they happened, and credits its sources — NASA, ESA, IAU announcements, historical publications and reference encyclopedias — with a "Verified" mark.

DESIGNED FOR EVERYONE
• Dark mode
• Text-to-speech: listen to any story read aloud
• Favourites with swipe to remove
• Clean, distraction-free reading experience
• No account, no ads, no tracking

COMPLETELY OFFLINE
All content, translations and quizzes are bundled inside the app. No internet connection is used — take the universe with you anywhere.

Download Astro Story and see how we learned to read the sky.