Astrophobia

Astrophobia:

Astrophobia is the fear of space and the universe.

This is precisely the fear of all that is not from the Earth.

This includes planets, stars, black holes and, of course, the emptiness of space. The word astrophobia comes from two works from the ancient Greek: “Astron-” wich means “celestial body” and “phobos” which means “fear”. Indeed, astrophobia means litterally “fear of celestial bodies”. The causes related to this fear are complex: this is a combination of external factors and internal predispositions. The internal predispositions refer to genetic and hereditary factors, fears that have been transmitted from the ancestors of the afflicted persons. The crises of astrophobia can start by the simple thought of space or by observation of the sky.

Sources:

The Free Dictionary (website)

Wiktionary (website)

Common phobia (website)