| Message sender SETI hopes to detect | 35 |
| Galactic visitor | 16 |
| Film set on the spaceship Nostromo | 34 |
| Film set aboard the Nostromo | 28 |
| Far removed | 11 |
| Earth invader | 13 |
| Citizenship seeker | 18 |
| An American in Paris, e.g. | 26 |
| 1979 Sigourney Weaver thriller | 30 |
| 1979 Sigourney Weaver film | 26 |
| 1979 sci-fi thriller | 20 |
| 1979 Ridley Scott thriller | 26 |
| "The X-Files" subject | 31 |
| "Star Trek" extra | 27 |
| "Men in Black" character | 34 |
| "___ Nation" (1988 sci-fi movie) | 42 |
| "___ Nation," 1988 film | 33 |
| ___ Ant Farm | 12 |
| ___ and Sedition Acts: 1798 | 27 |
| Yank at Oxford, e.g. | 20 |
| Xenophobes concern | 18 |
| Xenophobe's focus | 21 |
| Xenophobe's bugaboo | 23 |
| Xenophile's friend | 22 |
| Worf or Troi, e.g. | 18 |
| Weekly World News newsmaker | 27 |
| Weekly World News cover photo, maybe | 36 |
| Weaver's work | 17 |
| Weaver work on a screen | 23 |
| Visitor to Earth | 16 |
| Visitor space | 13 |
| Visitor in "District 9" | 33 |
| Visitor from Venus? | 19 |
| Visitor from Venus | 18 |
| Visitor from far, far away | 26 |
| Visitor from another world | 26 |
| Very unfamiliar | 15 |
| Utterly unfamiliar | 18 |
| Unnaturalized | 13 |
| Undocumented worker | 19 |
| Undocumented person | 19 |
| Uitlander | 9 |
| UFO visitor | 11 |
| UFO rider | 9 |
| UFO operator | 12 |
| UFO flyer | 9 |
| UFO crewman | 11 |
| U.F.O. pilot | 12 |
| U.F.O. crewman | 14 |
| U.F.O. crew member | 18 |
| Tramontane of sorts | 19 |
| Tourist from space | 18 |
| The A of ALF | 12 |
| Tabloid creature | 16 |
| Tabloid cover topic, maybe | 26 |
| Surveillance subject in "Men in Black" | 48 |
| Superman or Martian Manhunter | 29 |
| Subject for an X-file | 21 |
| Starman, e.g. | 13 |
| Starman | 7 |
| Spaceship passenger | 19 |
| Spaceship inhabitant | 20 |
| Spacehog's debut "Resident ___" | 45 |
| Spacehog debut "Resident ___" | 39 |
| Spacehog "Resident" | 29 |
| Space visitor | 13 |
| Space spooker of 1979 | 21 |
| Sigourney Weaver sci-fi thriller | 32 |
| Sigourney Weaver movie | 22 |
| Sigourney Weaver hit: 1979 | 26 |
| Sigourney Weaver film: 1979 | 27 |
| Sigourney Weaver classic | 24 |
| Sci-fi thriller starring Sigourney Weaver | 41 |
| Sci-fi regular | 14 |
| Sci-fi horror film: 1979 | 24 |
| Sci-fi heavy | 12 |
| Sci-fi foe | 10 |
| Sci-fi film with an android named Ash | 37 |
| Sci-fi film with a hatching egg on its poster | 45 |
| Sci-fi film extra | 17 |
| Sci-fi classic of 1979 | 22 |
| Saucer flyer | 12 |
| Saucer flier | 12 |
| Saucer creature | 15 |
| Roswell visitor | 15 |
| Ripley adversary | 16 |
| Reptilian, supposedly | 21 |
| Refuge seeker | 13 |
| Radiohead "Subterranean Homesick ___" | 47 |
| Quite dissimilar | 16 |
| Prospective citizen | 19 |
| Predator's opponent, in the movies | 38 |
| Predator's foe in a 2004 film | 33 |
| Perpetrator of an abduction | 27 |
| Outsider of a sort | 18 |
| Out-of-this-world type | 22 |
| Out-of-this-world | 17 |
| Otherworldly visitor | 20 |
| Otherwordly | 11 |
| One with a big head? | 20 |