| AMALTHEA | Largest of the four inner moons of Jupiter, discovered by US astronomer Edward Emerson Barnard in 1892 (8) |
| THEBE | Outermost of the four inner moons of Jupiter, discovered by US astronomer Stephen P. Synnott in 1979 (5) |
| ADRASTEA | Smallest of the four inner moons of Jupiter, discovered by the space probe Voyager 2 in 1979 (8) |
| ELARA | Eighth-largest of the 95 known moons of Jupiter, discovered by US astronomer Charles Dillon Perrine in 1905 (5) |
| LYSITHEA | Moon of Jupiter discovered by US astronomer Seth Barnes Nicholson in 1938, later named after an Oceanid and lover of Zeus (8) |
| DEIMOS | Smaller and outermost of the two moons of Mars, discovered by US astronomer Asaph Hall in 1877 (6) |
| EUROPA | Moon of Jupiter discovered by Galileo in 1610, the sixth-largest moon in the Solar System (6) |
| PHOEBE | Largest irregular moon of Saturn, discovered by US astronomer William Henry Pickering in 1899 (6) |
| GANYMEDE | Largest moon of Jupiter, discovered by Galileo Galilei in 1610 (8) |
| PORTIA | An inner moon of the planet Uranus named after a character in The Merchant Of Venice (6) |
| HONSHU | The largest of the four main islands of Japan. It forms a northeast-southwest arc extending about 800 miles (1,287 km) and varies greatly in width. (6) |
| METIS | Inner moon of Jupiter |
| CALLISTO | Satellite of Jupiter discovered by Galileo in 1610(8) |
| MUNSTER | Largest of the four provinces in Ireland (7) |
| HUTU | Largest of the four main ethnic groups of Burundi and Rwanda (4) |
| UTAH | Largest of the four-letter states by size |
| KYUSHU | Southernmost and third largest of the four main islands of Japan. (6) |
| ASPARTAME | Artificial sweetener, approximately 200 times sweeter than sugar, discovered by US chemist James M. Schlatter in 1965 (9) |
| NATURALGAS | US city routine adopted by US astronomer turning up fuel |
| LEDA | Moon of Jupiter discovered in 1974 |
