| CLYDE | US astronomer who discovered the dwarf planet Pluto in 1930 (5,8) |
| TOMBAUGH | US astronomer who discovered the dwarf planet Pluto in 1930 (5,8) |
| REBER | Grote ___, US Astronomer who built first radio telescope 1937 (5) |
| SCORPIO | Second of the three water signs of the zodiac, ruled by the planet Mars and the dwarf planet Pluto (7) |
| CHARON | Ferryman of Hades in mythology, also the moon of the dwarf planet Pluto (6) |
| PLUTO | From the Roman name of the god of the underworld aka "the rich one", the largest of the dwarf planets (5) |
| XENA | Former name of the dwarf planet Eris |
| HERSCHEL | William ___, astronomer who discovered the planet Uranus in 1781 (8) |
| SEDNA | Red planetoid discovered orbiting the sun beyond Pluto in 2003, named after the Inuit goddess of the sea (5) |
| ERIS | Largest of the dwarf planets |
| GALILEO | Astronomer who discovered the main moons of Jupiter |
| HALL | Asaph, U.S. astronomer who discovered the moons of Mars (4) |
| CASSINI | Giovanni Domenico -; astronomer who discovered the gaps between Saturn's rings (7) |
| VENETIA | Burney who named the planet Pluto |
| DEIMOS | Smaller and outermost of the two moons of Mars, discovered by US astronomer Asaph Hall in 1877 (6) |
| ELARA | Eighth-largest of the 95 known moons of Jupiter, discovered by US astronomer Charles Dillon Perrine in 1905 (5) |
| PAPADOC | The Maori settlement repeated, the dwarf was a ruler in the Caribbean (4,3) |
| STOTT | Ken *****, actor who played the dwarf Balin in 'The Hobbit' film trilogy (5) |
| TURNER | Aidan ___, actor who played the dwarf Kili in Peter Jackson's The Hobbit trilogy (6) |
| AMALTHEA | Moon of Jupiter, discovered by US astronomer Edward Emerson Barnard in 1892 (8) |
