Carl Sagan's Cosmic Calendar
See your place in the Universe
Free · Designed for iPad. Not verified for macOS.
Explore cosmic history as a single year, from the Big Bang to modern humanity, and discover how tiny yet extraordinary our moment in time really is.
Carl Sagan’s Cosmic Calendar lets you explore the history of the universe as if it all happened within a single year.
From the birth of the universe to the formation of Earth, from the first life to modern humanity, every event is placed on a cosmic scale so you can see just how recent our story really is.
Designed to be beautiful, calm, and easy to understand, the app turns science into something you can feel.
Features:
• Explore major cosmic events in a simple visual timeline
• See the universe compressed into one calendar year
• Move through events with a tactile wheel-based interface
• Zoom from broad cosmic eras into dense periods of history
• Learn through short, clear event descriptions
Whether you’re curious about astronomy, love big ideas, or just want perspective, Cosmic Calendar gives you a new way to look at time.
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The developer, Medet Tleugabyluly, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MEDET TLEUGABYLULY LIMITED
- Size
- 50.4 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 MEDET TLEUGABYLULY LIMITED