| exoplanets and alien life | 0.6 | 0.7 | 4523 | 25 | 48 |
| alien life on exoplanets | 2 | 0.7 | 8472 | 24 | 27 |
| exoplanets that could have life | 1.93 | 0.8 | 521 | 31 | 51 |
| exoplanets with possibility of life | 0.09 | 0.7 | 6207 | 35 | 34 |
| life on an exoplanet | 0.52 | 0.7 | 92 | 20 | 92 |
| exoplanets that could support life | 1.23 | 0.5 | 6130 | 34 | 23 |
| life on alien planets | 0.21 | 0.2 | 1895 | 21 | 9 |
| exoplanets that could support life list | 0.15 | 0.5 | 6012 | 39 | 39 |
| alien life on other planets | 0.12 | 0.5 | 7339 | 27 | 50 |
| exoplanets capable of hosting life | 0.13 | 0.8 | 2830 | 34 | 73 |
| exoplanets within 20 light years | 1.5 | 0.4 | 4340 | 32 | 32 |
| are there any exoplanets like earth | 1.51 | 0.1 | 8927 | 35 | 73 |
| what are the exoplanets | 0.69 | 0.4 | 2794 | 23 | 98 |
| fun facts about exoplanets | 0.4 | 0.4 | 9104 | 26 | 96 |
| living animals on exoplanet | 1.79 | 1 | 4824 | 27 | 79 |
| exoplanets in our solar system | 1.52 | 0.2 | 1772 | 30 | 98 |
| what are exoplanets facts | 1.3 | 0.1 | 7692 | 25 | 26 |
| actual pictures of exoplanets | 1.35 | 0.7 | 4294 | 29 | 34 |
| real picture of a exoplanet | 1.4 | 0.7 | 8067 | 27 | 72 |
