The Pilgrim's Ledger

Mark what you have read and heard on the Cosmos, and earn a wax seal for each of the seven heavens.

A scholar in a blue robe leans over a celestial globe by a window, one hand resting on it.
Johannes Vermeer, The Astronomer, 1668

The Fellowship

The Pilgrim's Ledger

A record of your road through the Cosmos. Mark each episode, essay and lesson as you finish it, and the ledger keeps the count.

Ten pieces in a heaven set its seal in wax. Seven seals complete the Ascent.

The Seven Heavens

From the Moon to Saturn, one seal for each heaven.

I Was There

Press Join on the Calendar or a course page and you are marked present on your way in.

    Book Clubs

    Hear every session of a book club to set its seal.

    Marks of the Fellowship

    Small marks for the road between the seals.

    The Ledger

    Everything on the Cosmos, heaven by heaven. Tap the circle beside a piece once you have read or heard it.

    You can also mark a piece from its card on the Cosmos, or at the top of each episode.