| Answer | Crossword Clue |
|---|---|
| ALF | Alien life form |
| SETI | Org. seeking alien life |
| ETS | Alien life forms, for short |
| SETI | Inst. hoping to contact alien life |
| CROPCIRCLE | Sign of alien life, some say |
| SETI | Scientific project seeking contact with alien life |
| SETI | Acronym of a scientific project seeking contact with alien life |
