| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| drake equation nasa | 1.59 | 0.3 | 4223 | 71 | 19 |
| drake | 0.09 | 0.7 | 5415 | 95 | 5 |
| equation | 0.47 | 1 | 8494 | 44 | 8 |
| nasa | 1.04 | 0.2 | 26 | 41 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| drake equation nasa | 0.34 | 0.6 | 4798 | 18 |
| drake equation nasa revised | 1.85 | 1 | 5849 | 26 |
| drake equation definition astronomy | 1.91 | 0.4 | 9656 | 93 |
| what is the drake equation us | 1.65 | 0.6 | 9819 | 42 |
| the drake equation enables astronomers to | 1.09 | 0.7 | 4754 | 95 |
| the drake equation explained | 1.16 | 0.8 | 8287 | 90 |
| the drake equation book | 0.03 | 0.4 | 15 | 65 |
| the drake equation answer | 1.6 | 0.8 | 5191 | 100 |
| what does the drake equation represent | 0.42 | 0.7 | 2065 | 23 |
| the drake equation simplified | 1.6 | 0.2 | 7423 | 41 |
| the drake equation estimate | 1.64 | 0.6 | 7493 | 29 |
