| 100% | INANE | 5 | The void of infinite space |
| 48% | CANAVERAL | 9 | The location of Kennedy Space Center, Cape __ |
| 48% | SKYLAB | 6 | Space station of the 1970s |
| 47% | UBIETY | 6 | The state of existing in space |
| 47% | LEADING | 7 | The space between lines of type |
| 46% | ASTRONOMY | 9 | The study of space and the universe |
| 46% | DISTANCE | 8 | The length of space between two places |
| 46% | USSR | 4 | Space Race rival of the U.S. |
| 46% | POROSITY | 8 | A measure of void spaces |
| 46% | EARTHRISE | 9 | Dawn of the Space Age? |
| 45% | VOLUME | 6 | The amount of space that an object occupies |
| 45% | INGLENOOK | 9 | The space on either side of a fireplace |
| 45% | PLAYBINGO | 9 | Take advantage of the Free Space |
| 45% | ADASTRA | 7 | Magazine of the National Space Society |
| 45% | SATURNROCKET | 12 | Booster of the Apollo space program |
| 45% | NASA | 4 | Launcher of the Endeavour space shuttle |
| 45% | AREA | 4 | Amount of space inside the boundary |
| 45% | OVERLAP | 7 | Share some of the same space |
| 45% | MIR | 3 | Precursor of the International Space Station |
| 45% | INDIANA | 7 | One of the red Monopoly spaces |
| 45% | KERN | 4 | Adjust the spacing of, in typography |
| 45% | TRIFFIDS | 8 | The Day of the __, killer plants from space attack |
| 45% | ASTRONOMY | 9 | The study of planets and other objects in space |
| 45% | ATTIC | 5 | Space under the roof with a stash of memorabilia? |
| 45% | STAR | 4 | The center space of a Scrabble board sports one |
| 45% | APOLLO | 6 | Space missions named after the Greek god of music |
| 45% | INGLENOOK | 9 | The space on either side of a big fireplace |
| 45% | BSIX | 4 | Space in the left row of a game card |
| 44% | ADASTRA | 7 | Official magazine of the National Space Society |
| 44% | MAE | 3 | Astronaut Jemison of the space shuttle Endeavour |