| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best sci fi books about space | 1.75 | 0.3 | 7291 | 93 |
| best sci fi space opera books | 1.01 | 0.8 | 1692 | 80 |
| best space exploration sci fi books | 0.44 | 0.4 | 1771 | 74 |
| sci fi books about space travel | 1.17 | 0.5 | 1949 | 42 |
| best science fiction space books | 1.02 | 0.9 | 7745 | 43 |
| best sci-fi books takes place in space | 0.98 | 0.4 | 9285 | 55 |
| best space sci fi series | 1.85 | 0.1 | 8812 | 38 |
| best space sci fi | 0.2 | 0.8 | 2231 | 10 |
| sci fi best books | 1.21 | 0.4 | 494 | 14 |
| sci fi books space exploration | 2 | 1 | 1045 | 72 |
| science fiction books about space | 0.34 | 0.9 | 8543 | 17 |
| space sci fi book series | 0.79 | 0.8 | 1085 | 60 |
| best space science fiction | 0.17 | 0.9 | 7925 | 11 |
| best sci-fi book series with space travel | 1.21 | 0.5 | 8334 | 30 |
