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<n>The Great Nebula in Orion</n> (1882), a chromolithograph by artist <n>Étienne Léopold Trouvelot</n>.

<n>The American Cowslip</n> (1800), a botanical illustration from <n>Robert John Thornton</n>'s <n>The Temple of Flora</n>.

<n>Large Flowering Sensitive Plant</n> (1807) from <n>Robert John Thornton</n>'s <n>The Temple of Flora</n>, painted by <n>Philip Reinagle</n>.

An eclipse seen from inside an <n>O'Neill Cylinder</n> space colony. Painting by <n>Don Davis</n> for a 1975 <n>NASA</n> study.

An illustration of Spathose Iron Ore from <n>James Sowerby</n>'s <n>British Mineralogy</n> (1802-17).

<n>Part of the Milky Way</n>, an 1882 astronomical drawing by <n>Étienne Léopold Trouvelot</n>.