| habitable planet | 0.53 | Among other things, to find habitable planets for humanity, Millis said. | ||
| habitable zone | 0.33 | Moreover, Gonzalez suggested, the habitable zone was unlikely to include the densely packed spiral arms of the galaxy. |
| habitable planet | 0.53 | Among other things, to find habitable planets for humanity, Millis said. | ||
| habitable zone | 0.33 | Moreover, Gonzalez suggested, the habitable zone was unlikely to include the densely packed spiral arms of the galaxy. |