CultureAugust 9, 2026

astrophages

AS-truh-fay-juhz

Definition

A fictional, energy-consuming microorganism or biological entity that serves as a central scientific mystery and fuel source in the novel 'Project Hail Mary'.

Etymology

The word is a creative coinage, combining the Greek root 'astron' (star) with the suffix '-phage' (from the Greek 'phagein', meaning to eat or devour), literally translating to 'star-eater'.

In the news

In the article, astrophages are mentioned as a key scientific challenge that Ryland Grace must address, though the author notes their application to faster-than-light travel might exceed the scientific limits typical of the hard science fiction tradition.

‘Project Hail Mary’ as Hard Science Fiction: How the Recent Hit (and the Book It’s Based On) Follows a Venerable Science Fiction Tradition

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High On Films

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