Public domain. Cover image from Project Gutenberg ebook #76654. The new science of space speech by Vincent H. Gaddis Download .m4b · 24 MB How to listen → · Problem with this narration? Let us know → Narrator Howard — Erudite New England Antiquarian (en-US) Length 24 min Language English Added November 2, 2026 Source ebook Project Gutenberg License Public domain Nonfiction