| 100% | JUPITER | 7 | Planet examined by the Galileo space probe |
| 45% | DOT | 3 | Pale blue ___, photograph taken by the Voyager 1 space probe |
| 45% | PLUTO | 5 | Dwarf planet photographed by the New Horizons probe |
| 45% | REDSPOT | 7 | Colorful feature photographed by the Juno space probe |
| 44% | MARINER | 7 | Pair of Martian space probes launched by the US in 1969 |
| 40% | NEAR | 4 | ___ Shoemaker, robotic space probe designed by the Johns Hopkins University Applied Physics Laboratory to study asteroid Eros |
| 37% | MARS | 4 | Planet explored by the rover Perseverance |
| 37% | MARS | 4 | Planet explored by the Opportunity rover |
| 36% | PIONEER | 7 | Space probe sent to Venus in the 1970s |
| 36% | ALT | 3 | PC key by the space bar |
| 36% | PARKINGSPOT | 11 | Space by the curb |
| 36% | BERTH | 5 | Space by the sea |
| 35% | ROSSBY | 6 | Waves formed by the planet's rotation |
| 35% | GPS | 3 | Network operated by the U.S. Space Force |
| 35% | EROS | 4 | Where the NEAR space probe landed |
| 34% | JUNO | 4 | NASA space probe named after the wife of Jupiter |
| 34% | HYDRAULIC | 9 | Driven by the movement of liquid in confined spaces |
| 34% | EROS | 4 | Asteroid visited by the NEAR Shoemaker probe |
| 33% | LANDER | 6 | Planet-visiting space probe |
| 33% | SATURN | 6 | Planet whose rings were discovered by Galileo in 1610 |
| 33% | MONGO | 5 | Planet ruled by Ming the Merciless in "Flash Gordon" |
| 32% | MIR | 3 | Site visited by the first space tourist |
| 32% | SATURN | 6 | Planet with seven rings observed by Galileo Galilei using 48a |
| 31% | PALMISTRY | 9 | Telling the future by examining lines on the hands |
| 31% | MARS | 4 | Planet being explored by the Curiosity rover |
| 31% | MIR | 3 | Space station launched by the Soviet Union |
| 30% | GAP | 3 | Space created by the loss of a baby tooth, e.g. |
| 30% | MARS | 4 | Planet being explored by the rovers Curiosity and Perseverance |
| 29% | ALBEDO | 6 | In physics, the fraction of the incoming light reflected by a planet |
| 29% | BACH | 4 | Baroque composer whose music was sent into space on the Voyager probes |