Astronomy

Aristotle: On The Heavens

On the Heavens (Greek: Περὶ οὐρανοῦ, Latin: De Caelo) is Aristotle's chief work on cosmology and astronomy. It remained a profound influence on later astronomical thinking until the early modern period.

On the Heavens at Amazon.com, .uk, .fr, .de, .ca.

Free online texts

Internet Archive: De Caelo, translated by J.L. Stocks (1922). Multiple formats.

Internet Classics Archive: On The Heavens, translated by J.L. Stocks (1922). HTML and TXT files.

Sacred-texts.com: On The Heavens, translated by J.L. Stocks (1922). HTML text.

University of Adelaide: On the Heavens, translated by J.L. Stocks. Multiple formats.

Wikisource: Greek text. English text, translated by J.L. Stocks. Multiple formats.

Other Resources

History of Philosophy without any gaps: Let's Get Physical: Aristotle's Natural Philosophy - podcast by philosopher Peter Adamson.

History of Philosophy without any gaps: Richard Sorabji on Time and Eternity in Aristotle - podcast by philosopher Peter Adamson.

History of Philosophy without any gaps: God Only Knows: Aristotle on Mind and God - podcast by philosopher Peter Adamson.

Librivox: On the Heavens - public domain audiobook.

Stanford Encyclopedia of Philosophy: Aristotle's Natural Philosophy, by Istvan Bodnar.

Wikipedia: On the Heavens

The Great Conversation: Further reading at Tom's Learning Notes

Plato: Timaeus - a key dialogue on cosmology.

Ancient Greek resources: Learn to read Greek classics in the original.