Alienophobia Fear of aliens.
Arisphobia Fear of Mars .
Astrophobia Fear of stars or celestial space.
Caelophobia Fear of the sky.
Callistophobia Fear of Jupiter's moon Callisto.
Celeformophobia Fear of constellations.
Ceresphobia Fear of the dwarf planet Ceres.
Cieriphobia Fear of lunar eclipse.
Cometophobia Fear of comets.
Cosmophobia Fear of the cosmos.
Cthulidriyoglothophobia Fear of cosmicism.
Deimosphobia Fear of Mars's moon Deimos.
Erisphobia Fear of the dwarf planet Eris.
Etiamophobia Fear of asteroids.
Europaphobia Fear of Jupiter's moon Europa.
Galaxiaphobia Fear of galaxies.
Ganymedephobia Fear of Jupiter's moon Ganymede.
Haiwangphobia Fear of Neptune .
Heliophobia Fear of the sun.
Iliakosystimaphobia Fear of the Solar System.
Iomophobia Fear of Jupiter's moon io.
Jinxiphobia Fear of Venus .
Kosmikophobia Fear of cosmic phenomenon.
Makemakephobia Fear of the dwarf planet Makemake.
Melanoheliophobia Fear of black holes .
Mestoselenophobia Fear of full moon .
Meteorophobia Fear of meteors.
Mingwangphobia Fear of Pluto.
Multiversophobia Fear of the multiverse.
Muxiphobia Fear of Jupiter .
Obscursolisphobia Fear of solar eclipse.
Phobosphobia Fear of Mars's moon Phobos.
Planitiphobia Fear of Planets.
Remaphobia Fear of full moon .
Selenophobia Fear of the moon.
Shuixphobia Fear of Mercury .
Siderophobia Fear of stars.
Spacephobia Fear of outer space.
Tennophobia Fear of Uranus .
Terraphobia Fear of Earth .