Image credits

Authorship and license of each image used in the figure on the home page.

• The Monk by the Sea, Caspar David Friedrich, 1808-1810 - a tiny figure facing the sea and the sky, with nothing between it and the void

  Alte Nationalgalerie, Staatliche Museen zu Berlin; via Wikimedia Commons Public domain

• The original plate from the eclipse of May 29, 1919, in Sobral: Einstein predicted a deflection, the plate measured it - the prediction handed to the judge before the answer

  F. W. Dyson, A. S. Eddington and C. Davidson, 1919; ESO / Landessternwarte Heidelberg-Königstuhl restoration; via Wikimedia Commons CC BY 4.0

• Liquid hydrogen bubble chamber photograph: an antiproton collides with a proton, and the particles draw their own tracks - the data that nature writes on its own

  U.S. Department of Energy; via Wikimedia Commons Public domain

• Foucault's pendulum at the Panthéon in Paris: the experiment that shows the Earth turning to anyone with the patience to look

  Photograph by xiquinhosilva; via Wikimedia Commons CC BY 2.0

• The Thinker, Rodin, 1904 - the bronze at the Musée Rodin, Paris

  Photograph by AndrewHorne; via Wikimedia Commons Public domain

• The School of Athens, Raphael, 1509-1511 - Stanza della Segnatura, Vatican

  Wikimedia Commons Public domain

• Wanderer above the Sea of Fog, Caspar David Friedrich, c. 1818 - his back turned, looking at what he doesn't know

  Kunsthalle Hamburg; via Wikimedia Commons Public domain

• The Creation of Adam, Michelangelo, 1512

  Wikimedia Commons Public domain

• Composition VIII, Kandinsky, 1923 - spinning for the sake of spinning, exuberant uselessness as pure form

  Solomon R. Guggenheim Museum, New York; via Wikimedia Commons CC0

• Vitruvian Man, Leonardo da Vinci, c. 1490

  Wikimedia Commons Public domain

• Fragment A of the Antikythera mechanism, c. 100 BC - the oldest known machine that calculates

  National Archaeological Museum, Athens; photograph by Logg Tandy; via Wikimedia Commons CC BY 4.0

• The chain of punched cards of a Jacquard loom: the program before the computer

  Photograph by Sunfox; via Wikimedia Commons CC BY-SA 2.0

• An opened Intel 80486, the die visible among the golden pins: the program turning into silicon

  Photograph by Thomy pc; via Wikimedia Commons Public domain

• The first image of a black hole, M87*, 2019 - a reconstruction from the data of eight radio telescopes, not a photograph

  Event Horizon Telescope Collaboration; via Wikimedia Commons CC BY 4.0

• Awakening Slave, Michelangelo, c. 1525-1530, Galleria dell'Accademia: the figure still emerging from the stone - the form before the answer

  Photograph by Jörg Bittner Unna; via Wikimedia Commons CC BY-SA 3.0

• The movement of an automatic mechanical watch with the case back open: balance wheel, jewels and Côtes de Genève

  Wikimedia Commons CC0

• The armillary sphere by Antonio Santucci, Florence, 1588-1593, Museo Galileo: the model of the cosmos chosen before any measurement - deciding what counts as proof

  Photograph by Sailko; via Wikimedia Commons CC BY-SA 3.0

• The International Prototype of the Kilogram under the two glass bell jars, the object that defined the unit until 2019

  Wikimedia Commons Public domain

• Stanislav Petrov, the officer who in 1983 decided that the automatic warning system was wrong

  Photograph by Queery-54; via Wikimedia Commons CC BY-SA 4.0

• The Astronomer, Vermeer, 1668, Louvre: the scholar, the globe, the hand on it - thinks, proves, takes form, and the author is present

  Musée du Louvre; via Wikimedia Commons Public domain

• Relay racks in a telephone exchange, 1923: correct, justified, running, and nobody looks

  Charles S. Demarest, 1923; via Wikimedia Commons Public domain

• Model of Tatlin's Tower, the Monument to the Third International, 1919-1920: a manifesto in built form, designed to rotate, never checked, never erected

  Reconstruction of the model; photograph by JuanCamacho; via Wikimedia Commons CC BY 3.0

• The replica of the DeLorean time machine from 'Back to the Future', doors open, flux capacitor and Mr. Fusion in view

  Photograph by Oto Godfrey and Justin Morton (TeamTimeCar.com), replica by Paul Nigh; via Wikimedia Commons CC BY-SA 4.0

• The cover of the Voyager Golden Record, with the engraved instructions for its own decoding

  NASA/JPL; via Wikimedia Commons Public domain

The finds in the dust

• The Fool and The Magician, from the Rider-Waite-Smith tarot

  Pamela Colman Smith, 1909, scan from Wikimedia Commons public domain

• Landscape with the Fall of Icarus

  attributed to Pieter Bruegel the Elder (old copy of a lost original), Royal Museums of Fine Arts of Belgium, scan from Wikimedia Commons public domain

• Vitruvian Man

  Leonardo da Vinci, around 1490, Gallerie dell'Accademia, scan from Wikimedia Commons public domain

• The Creation of Adam

  Michelangelo, between 1508 and 1512, Sistine Chapel ceiling, scan from Wikimedia Commons public domain

• The Starry Night

  Vincent van Gogh, 1889, Museum of Modern Art, New York, scan from Wikimedia Commons public domain

• Emerald Tablet

  Matthäus Merian, 1618, from the Opus Medico-Chymicum by Daniel Mylius, scan from Wikimedia Commons public domain

• Grosse Fuge, opus 133

  title page of the first edition, Artaria, Vienna, 1827, scan from Wikimedia Commons public domain

• Still life with chickens and eggs

  Giovanni Battista Recco, between 1640 and 1660, Rijksmuseum public domain

• Holmes and Watson in the railway carriage, in Silver Blaze

  Sidney Paget, The Strand Magazine, December 1892, scan from Wikimedia Commons public domain

• Ouroboros

  engraving by Lucas Jennis, Dyas Chymica Tripartita, Frankfurt, no later than 1625, scan from Wikimedia Commons public domain

• Leibniz manuscript with the integral and differential notation

  Gottfried Wilhelm Leibniz, photograph by Stephen Wolfram (2013) via Wikimedia Commons public domain; photograph under the MIT license

• Presumed portrait of Paracelsus

  anonymous seventeenth-century copy after Quentin Matsys, Louvre Museum, scan from Wikimedia Commons public domain

• Pale Blue Dot

  Voyager 1, 1990, reprocessed version from 2020, NASA and JPL-Caltech public domain

• The "Gould" violin

  Antonio Stradivari, Cremona, 1693, The Metropolitan Museum of Art, gift of George Gould, 1955 - museum photograph Open Access CC0

• "Says", the music of the entry curtain

  Nils Frahm, from the album Spaces, Erased Tapes, 2013 - excerpt from the first three minutes all rights reserved by the author and the label

• "Cylinder Nine", music of the journey after "Says"

  Chris Zabriskie, from the album Cylinders , 2014 - silence trimmed at both ends, volume matched to "Says" and converted to Opus and AAC CC BY 4.0

• "Cepheid", "Airglow" and "Eternity", music of the journey after "Says"

  Stellardrone, from the album Light Years , Energostatic Records, 2013 - silence trimmed at both ends, volume matched to "Says" and converted to Opus and AAC CC BY 3.0

• "Blueshift", "Innermission" and "Electrifying Landscape", music of the journey after "Says"

  AIRGLOW, from the album Memory Bank , Stratford Ct., 2014 - silence trimmed at both ends, volume matched to "Says" and converted to Opus and AAC CC BY 3.0

• "Mt. Fuji", music of the journey after "Says"

  Timecrawler 82, from the album Osaka Lights , 2018 - silence trimmed at both ends, volume matched to "Says" and converted to Opus and AAC CC BY 4.0

• Kumon pencils and eraser, the photo of the “One sheet a day” find

  Jengod, Kumon-pencils-eraser.JPG , Wikimedia Commons, 2014 - cropped to 4:3, resized and converted to WebP; the Kumon mark belongs to the Kumon Institute of Education CC BY-SA 3.0

• Virgo, the figure that appears when the constellation on the left closes

  Johannes Hevelius, Firmamentum Sobiescianum sive Uranographia, 1690, scan from Wikimedia Commons public domain

• Cancer, the figure that appears when the constellation on the right closes

  Johannes Hevelius, Firmamentum Sobiescianum sive Uranographia, 1690, plate EE, scan from Wikimedia Commons public domain

• Portrait of Antoine de Saint-Exupéry, in the find about The Little Prince

  unknown photographer, around 1920, scan from Wikimedia Commons - the book's drawings (1943) are still under copyright in the United States and in France, and that is why they are left out public domain

• Poster for Tempestade Solar, in the find about theatre

  opening frame of the short film, made in 2025 in the Cinema Lab at Rocio Produções, Petrópolis - own work, converted to WebP work by the author of the site

• Screenshot from GRIS, in the post about the figure on the home page

  Nomada Studio, 2018, official screenshot published at nomada.studio - reproduced for commentary on the game's influence on this site, resized and converted to WebP all rights reserved by the studio

The finds only a power shows

• Holmes sketches the events, in Silver Blaze

  Sidney Paget, original gouache and watercolor drawing for The Strand Magazine, December 1892, scan from Wikimedia Commons public domain

• A man entered, in A Scandal in Bohemia

  Sidney Paget, The Strand Magazine, July 1891, scan from Wikimedia Commons public domain

The type of the eras

• Prehistory: the titles

  Amatic SC, de Vernon Adams (The Amatic SC Project Authors) SIL Open Font License 1.1

• London, 1888: the body text

  Old Standard TT, de Alexey Kryukov (The Old Standard Project Authors) SIL Open Font License 1.1

• London, 1888: the headlines

  Abril Fatface, da TypeTogether SIL Open Font License 1.1

• London, 1888: the section heads

  Alfa Slab One, de José María Solé (The Alfa Slab One Project Authors) SIL Open Font License 1.1

• 2071: the titles and the title card

  Bebas Neue, da Dharma Type (The Bebas Neue Project Authors) SIL Open Font License 1.1

The Voyager Golden Record

• Mounting the Golden Record (photo of the disc)

  NASA/JPL - Wikimedia Commons - a photo OF the disc (mounting it on the spacecraft), not one of the 116 images encoded on it; used only as the opening of the sequence. Domínio público (NASA/JPL, via Wikimedia Commons)

• Calibration circle

  Jon Lomberg, catalogado pela NASA (Internet Archive: images-on-voyager-record) - Wikimedia Commons Domínio público (Wikimedia Commons)

• Solar spectrum

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Mercury

  NASA - Wikimedia Commons Domínio público (Wikimedia Commons)

• Mars

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Jupiter

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Earth

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Earth (Egypt, Red Sea, Sinai Peninsula and the Nile)

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Snake River and Grand Tetons

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Supermarket

  Herman Eckelmann, catalogado pelo Ames Research Center da NASA - Wikimedia Commons Domínio público (Wikimedia Commons)

• Demonstration of licking, eating and drinking

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• X-ray of hand

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Modern highway (Ithaca)

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Radio telescope (Arecibo)

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Page of book (Newton, System of the World)

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Astronaut in space

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Titan Centaur Launch

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Violin with music score (Cavatina)

  autor não informado na página do Commons - Wikimedia Commons Domínio público (Wikimedia Commons)

• Cover explanation

  NASA Jet Propulsion Laboratory - Wikimedia Commons - the diagram etched on the disc's cover (not one of the 116 images - it is the instruction for how to play it), made by JPL with no third-party rights. Domínio público (Wikimedia Commons)

• VgrCover (photo of the disc)

  autor não informado na página do Commons - Wikimedia Commons - a photo OF the disc (the golden cover), not one of the 116 images encoded on it; used only as the closing of the sequence. Domínio público (Wikimedia Commons)