| Date | Grid | Clue | Author |
| Mon Feb 5, 2024 | 1A | U.F.O. crew, supposedly (2) | Desirée Penner and Jeff Sinnock |
| Sun Feb 4, 2024 | 107A | Otherworldly creatures, for short | Daniel Grinberg |
| Tue Jan 23, 2024 | 8D | Flying saucer crew, for short | Patrick Maher |
| Sun Dec 3, 2023 | 89D | Otherworldly sorts, for short | Tracy Bennett |
| Wed Jul 5, 2023 | 4D | They're not from around here, in brief | Joe Deeney |
| Sat Jun 24, 2023 | 39A | "Arrival" arrivals, for short | Spencer Leach and Quiara Vasquez |
| Thu Jun 8, 2023 | 17A | Agent Mulder's obsession, in brief | Philip Koski |
| Mon May 29, 2023 | 17D | U.F.O. pilots (9) | Katie Hale and Zachary David Levy |
| Sat May 27, 2023 | 48D | Subjects of some conspiracy theories, in brief | Samuel Smalley |
| Mon May 15, 2023 | 24D | U.F.O. pilots (9) | Tomas Spiers |
| Sat May 13, 2023 | 23A | Baddies on TNT's "Falling Skies," for short | Spencer Leach |
| Mon Mar 13, 2023 | 4A | Ewoks or Klingons, in brief | Sam Koperwas and Jeff Chen |
| Mon Feb 20, 2023 | 20A | U.F.O. pilots, for short | Emily Carroll |
| Thu Jan 26, 2023 | 47D | Fabled visitors to 49-Down, in brief | Dan Ziring and Quiara Vasquez |
| Wed Jan 11, 2023 | 54A | Beings not (yet) proven to exist | Victor Barocas |
| Sun Jan 1, 2023 | 56A | Visitors from afar, in brief | Adam Wagner, Michael Lieberman and Rafael Musa |
| Sat Dec 31, 2022 | 32D | 35-Across and others, in brief | Billy Bratton |
| Thu Dec 22, 2022 | 23D | "We come in peace" speakers, in brief | David Steinberg |
| Wed Dec 7, 2022 | 49D | H.S. exam org. (2) | Karen Steinberg |
| Fri Nov 18, 2022 | 9D | They left behind one of their own in a 1982 film | Robyn Weintraub |
| Thu Sep 22, 2022 | 61A | Figures on "The X-Files," in brief | Helen Chen |
| Tue Sep 20, 2022 | 23A | U.F.O. pilots (9) | Rebecca Goldstein and Rachel Fabi |
| Mon Sep 19, 2022 | 24D | Aliens, in brief | Leslie Young and Andrea Carla Michaels |
| Mon Sep 5, 2022 | 62A | U.F.O. pilots, some believe | Adam Simpson |
| Wed Aug 17, 2022 | 21A | "Star Wars" cantina patrons, for short | Michael Paleos |
| Thu Aug 11, 2022 | 41D | Hypothetical entities, for short | David Tuffs |
| Tue Jun 28, 2022 | 32D | Travelers from afar, for short (2) | Scott Graham |
| Thu Jun 23, 2022 | 8D | Mars rovers, in brief? | Jeff Chen |
| Sat May 28, 2022 | 40A | Saucer contents, for short (3) | Joseph Greenbaum |
| Mon Mar 21, 2022 | 36A | Flying saucer fliers, in brief | John Ewbank and Jeff Chen |
| Sun Mar 20, 2022 | 55A | Superman and others, for short | Brad Wiegmann |
| Thu Feb 17, 2022 | 20D | Supposed creators of crop circles, for short | Aaron M. Rosenberg |
| Tue Jan 18, 2022 | 50A | Org. that creates the G.R.E. | Kate Schutzengel |
| Tue Dec 21, 2021 | 26D | U.F.O. pilots (9) | Guilherme Gilioli |
| Thu Dec 16, 2021 | 5D | French connections (8) | Trenton Charlson |
| Sat Dec 4, 2021 | 44A | Big inits. in admissions | Nam Jin Yoon |
| Sun Nov 21, 2021 | 97A | Some dolls sold in a Universal Studios gift shop | Adam Wagner |
| Fri Oct 22, 2021 | 21A | "Men in Black" antagonists | Robyn Weintraub |
| Sun Oct 3, 2021 | 80A | Sci-fi travelers | Trenton Charlson |
| Fri Jun 18, 2021 | 54D | Org. that administers the G.R.E. | Daniel Larsen |
| Thu May 20, 2021 | 45D | Uranians, e.g. (2) | Trenton Charlson |
| Mon Mar 22, 2021 | 35A | Those who are not among us (or are they?) | Daniel Grinberg |
| Thu Jan 14, 2021 | 44D | Subjects of some conspiracy theories, for short | Aimee Lucido and Ella Dershowitz |
| Sat Jan 9, 2021 | 44A | Travelers from a faraway place, for short | Trenton Charlson |
| Sun Nov 29, 2020 | 35D | Klingons, e.g., for short | Eric Berlin |
| Sun Oct 18, 2020 | 103D | 8-Down pilots, in brief | Miriam Estrin |
| Mon Sep 21, 2020 | 56A | Venusians and Martians, in brief | Daniel Larsen and The Wave Learning Festival Crossword Class |
| Thu Sep 17, 2020 | 25A | Supposed crop circle makers, for short (2) | Simeon Seigel |
| Fri Sep 4, 2020 | 38A | They might come in saucers, for short | Brian Thomas |
| Sun Aug 9, 2020 | 120A | College entrance exam org. | Ruth Bloomfield Margolin |
| Sun Jul 26, 2020 | 11D | Long-distance travelers, informally | Trenton Charlson |
| Sun Jul 19, 2020 | 1A | Ones out of this world, for short | Wyna Liu |
| Tue Jul 7, 2020 | 28A | Visitors from another planet, in brief | Kevin Patterson |
| Wed Jul 1, 2020 | 46A | Connections on Air France? | Amanda Rafkin and Ross Trudeau |
| Tue Jun 30, 2020 | 8D | Many "Men in Black" characters, informally | Zachary David Levy |
| Sun Jun 14, 2020 | 86D | Some toy dolls of the 1980s | Randolph Ross |
| Thu Apr 9, 2020 | 57D | H.S. exam org. (2) | Alex Eaton-Salners |
| Sun Mar 29, 2020 | 72A | The invaders in Space Invaders, in brief | Ricky Cruz |
| Fri Mar 20, 2020 | 36A | They're kept at Area 51, supposedly | Wyna Liu and Paolo Pasco |
| Thu Mar 19, 2020 | 61A | Saucer users, in brief | Wayne Bergman and Gary Otting |
| Sun Dec 15, 2019 | 117D | G.R.E. administrator | Christina Iverson and Jeff Chen |
| Thu Nov 14, 2019 | 62D | Down-to-earth types, in brief? | Alex Eaton-Salners |
| Thu Oct 31, 2019 | 24A | Travelers from afar, for short (2) | Ezra Brauner and Jeff Chen |
| Sat Sep 7, 2019 | 41A | A.P. exam inits. (2) | Trenton Charlson |
| Wed May 22, 2019 | 12D | "The X-Files" extras, briefly (2) | Alex Eaton-Salners |
| Tue Apr 9, 2019 | 70A | Holy mlle. / Romulans, e.g., in brief | Alex Eaton-Salners |
| Mon Feb 4, 2019 | 51A | Visitors from outer space, for short | Ali Gascoigne |
| Wed Jan 30, 2019 | 31D | U.F.O. occupants (4) | Emily Carroll |
| Sun Jan 27, 2019 | 25A | Venusians, e.g., informally | Randolph Ross |
| Sat Jan 26, 2019 | 7D | Letters for potential college students | Grant Thackray |
| Fri Jan 25, 2019 | 15D | Life on Mars? | Zhouqin Burnikel |
| Wed Jan 16, 2019 | 49A | The Na'vi in "Avatar," e.g. | Bruce Haight |
| Fri Nov 23, 2018 | 41A | Sightings in 11-Across | Temple Brown |
| Tue Nov 6, 2018 | 32A | U.F.O. pilots (9) | Alan Southworth and Yacob Yonas |
| Fri Nov 2, 2018 | 38A | Figures in some "Twilight Zone" episodes, for short | David Steinberg |
| Sun Oct 28, 2018 | 120D | Sci-fi C.G.I. creations | Erik Agard |
| Mon Oct 22, 2018 | 52A | "The War of the Worlds" villains, briefly | Alex Eaton-Salners |
| Sun Oct 14, 2018 | 6D | Ewoks or Jawas, in brief | Ross Trudeau |
| Thu Oct 11, 2018 | 67A | Letters for college applicants | Johanna Fenimore and Jeff Chen |
| Tue Aug 21, 2018 | 22D | U.F.O. crew (12) | John Lieb and Andrea Yañes |
| Sun Aug 19, 2018 | 50D | Vulcans or Jawas, in brief | Jacob Stulberg |
| Fri Aug 3, 2018 | 49A | Extras on TV's "Doctor Who" | David Steinberg |
| Sun Jul 15, 2018 | 19D | Uranians and Neptunians | Sam Ezersky and Byron Walden |
| Wed Jun 27, 2018 | 8D | Mysteries in the '16 film "Arrival" | Ned White |
| Sat May 19, 2018 | 19A | & & &, in France | John Guzzetta |
| Fri May 4, 2018 | 62D | Arrivals in "Arrival," for short | Michael Hawkins |
| Wed May 2, 2018 | 25A | "The X-Files" extras, for short | Bryant White |
| Sat Mar 24, 2018 | 32A | And many times in France? | Byron Walden |
| Thu Jan 4, 2018 | 55A | Some characters on TV's "Futurama," briefly | Daniel Mauer |
| Sun Dec 31, 2017 | 40D | Targets in "Men in Black," informally | John Lampkin |
| Sun Nov 19, 2017 | 112D | French connections (8) | Tom McCoy |
| Wed Sep 20, 2017 | 31D | "Star Wars" extras, for short (2) | Hal Moore |
| Thu Aug 24, 2017 | 12D | A.P. exam inits. (2) | Neil Patrick Harris and David Steinberg |
| Thu Aug 3, 2017 | 58D | Figures in the 2016 film "Arrival," for short | Timothy Polin |
| Sun May 14, 2017 | 79D | Many "Star Trek" characters, for short | Will Nediger |
| Thu Nov 17, 2016 | 10D | French connections (8) | Timothy Polin and Joe Krozel |
| Sun Oct 16, 2016 | 41A | U.F.O. pilots (9) | Tom McCoy |
| Sun Aug 28, 2016 | 116A | Most "Doctor Who" characters, for short | Paolo Pasco |
| Sun Jun 26, 2016 | 19D | SAT org. (4) | Priscilla Clark and Jeff Chen |
| Wed Jun 1, 2016 | 28D | Alf and Mork, for short | Wren Schultz |
| Thu Jan 21, 2016 | 6D | French connections (8) | David Phillips |
| Wed Jan 20, 2016 | 20A | Sci-fi visitors (2) | Herre Schouwerwou |
| Thu Oct 1, 2015 | 6A | French connections (8) | John Guzzetta |
| Sun Sep 13, 2015 | 52D | Many figures in the "Doctor Who" universe, for short | Joe DiPietro |
| Sun Jul 26, 2015 | 113D | Mork and Worf | Ellen Leuschner and Jeff Chen |
| Tue Jul 14, 2015 | 45A | U.F.O. pilots (9) | Kevin Christian and Brad Wilber |
| Wed Jun 24, 2015 | 28A | Exam-administering org. | Ian Livengood and J.A.S.A. Crossword Class |
| Mon Mar 16, 2015 | 65D | U.F.O. crew, supposedly (2) | Ian Livengood |
| Fri Oct 31, 2014 | 35A | Predators in the "Predator" films, for short | Mary Lou Guizzo and Jeff Chen |
| Sun Oct 5, 2014 | 37A | U.F.O. occupants (4) | Samuel A. Donaldson |
| Sun Sep 28, 2014 | 30A | "Guardians of the Galaxy" title characters, informally | Todd Gross |
| Wed Sep 10, 2014 | 20A | Riders in 10-Across | Jim Peredo |
| Tue Jul 15, 2014 | 29A | Aliens, for short (5) | Zhouqin Burnikel |
| Sat May 3, 2014 | 55D | Coneheads, e.g., for short | Sam Ezersky |
| Mon Dec 9, 2013 | 35A | Martians, e.g., in brief (2) | Nina Rulon-Miller |
| Sat Dec 7, 2013 | 30D | So-far-undiscovered ones, briefly | James Mulhern |
| Mon Nov 4, 2013 | 60D | Many "Star Trek" extras, for short | John Lieb |
| Wed Oct 30, 2013 | 52A | Certain Halloween costumes, for short | Joel Fagliano |
| Fri Sep 20, 2013 | 46D | "Captain Video" figures, for short | Mangesh Ghogre and Doug Peterson |
| Sun Aug 18, 2013 | 4D | Figures in Astounding Stories, for short | Elizabeth C. Gorski |
| Wed Jul 10, 2013 | 42D | They're found at Area 51, supposedly | Ed Sessa |
| Sun Jun 2, 2013 | 120D | U.F.O. crew (12) | Elizabeth C. Gorski |
| Mon Jan 14, 2013 | 66A | Aliens, for short (5) | Steve Salmon |
| Fri Nov 16, 2012 | 4D | Subjects of an as-yet-fruitless search, briefly | Victor Fleming |
| Wed Nov 7, 2012 | 57D | Sci-fi figures (4) | George Fitzgerald and Nancy Salomon |
| Wed Jul 25, 2012 | 61D | "V" visitors, briefly | Daniel Raymon |
| Tue May 15, 2012 | 50A | Those aboard a U.F.O. | Susan Gelfand |
| Sat Apr 28, 2012 | 15D | 8-Down characters, briefly | Gary J. Whitehead |
| Thu Mar 15, 2012 | 59A | Score keeper, for short? | Kristian House |
| Sun Jan 29, 2012 | 42A | "Barbarella" extras, for short | Ian Livengood |
| Tue Jan 17, 2012 | 9D | Flying saucer fliers, for short (2) | Elizabeth A. Long |
| Wed Dec 14, 2011 | 68A | U.F.O. crew (12) | Tim Croce |
| Mon Dec 12, 2011 | 42A | Visitors from beyond | Gary Cee |
| Sun Dec 4, 2011 | 93D | Some "Men in Black" characters, for short | Kelsey Blakley |
| Wed Nov 30, 2011 | 46A | SAT company (7) | Rolf Hamburger |
| Mon Nov 21, 2011 | 20A | SAT org. (4) | Peter A. Collins |
| Sun Oct 2, 2011 | 32A | Foreign visitors? (2) | Eric Berlin |
| Sat Oct 1, 2011 | 4D | Letters for college-bound students | David Quarfoot |
| Tue Aug 16, 2011 | 29A | U.F.O. crew (12) | David Steinberg |
| Thu May 12, 2011 | 36D | Aliens, for short (5) | Patrick John Duggan |
| Mon Feb 21, 2011 | 31A | Non-earthlings, for short (2) | Ed Sessa |
| Mon Nov 22, 2010 | 12D | U.F.O.'s crew | David Poole |
| Wed Oct 6, 2010 | 33D | Frequent Weekly World News subjects, briefly | Ian Livengood |
| Mon Sep 27, 2010 | 6D | Co. that oversees the 21-Across | Janice M. Putney |
| Mon Sep 13, 2010 | 42A | Fliers of U.F.O.'s | Aimee Lucido, Brown University '13 |
| Tue Jul 27, 2010 | 12D | U.F.O. crew (12) | Mike Torch |
| Mon Jul 26, 2010 | 8D | Org. that produces college entrance exams | Janet R. Bender |
| Fri Jul 16, 2010 | 13D | Some "Space Patrol" characters, for short | Mel Rosen |
| Thu Jul 1, 2010 | 5A | U.F.O. crew (12) | Clive Probert |
| Sun May 2, 2010 | 78A | "Galaxy Quest" characters, in brief | Kelsey Blakley |
| Fri Dec 11, 2009 | 25A | Doctor Who and others, briefly (2) | Mike Nothnagel |
| Tue Sep 15, 2009 | 42A | U.F.O. fliers (5) | Fran and Lou Sabin |
| Mon Aug 10, 2009 | 35A | Beings from out of this world, in brief | Paula Gamache |
| Tue Jun 30, 2009 | 51A | U.F.O. crew (12) | Steve Dobis |
| Sun Jun 14, 2009 | 63D | Hangar 18 contents, supposedly | Brendan Emmett Quigley |
| Tue Mar 24, 2009 | 38A | Little green men, for short | Pancho Harrison |
| Mon Feb 9, 2009 | 67D | Visitors from Venus, say | Randall J. Hartman |
| Sun Dec 21, 2008 | 4D | U.F.O. fliers (5) | Elizabeth C. Gorski |
| Fri Aug 29, 2008 | 32A | Group from a very distant place | Mike Nothnagel |
| Sun Aug 24, 2008 | 110A | "The War of the Worlds" invaders, briefly | Kevin G. Der |
| Thu Aug 14, 2008 | 67D | Uranians, e.g., in brief | Damon J. Gulczynski |
| Tue Jul 15, 2008 | 13D | Some "Stargate SG-1" characters, in brief | Leonard Williams |
| Mon Jun 23, 2008 | 9D | Martians, e.g., for short | Andrea Carla Michaels and Patrick Blindauer |
| Wed May 21, 2008 | 67A | Saucer contents, in brief? | Dave Mackey |
| Thu Apr 24, 2008 | 34D | Foreign visitors? (2) | Michael Langwald |
| Thu Apr 17, 2008 | 48A | Klingons, e.g. (2) | Byron Walden |
| Thu Apr 10, 2008 | 36D | Doctor Who and others, briefly (2) | David J. Kahn |
| Tue Feb 26, 2008 | 48A | U.F.O. crew (12) | Sarah Keller |
| Mon Feb 4, 2008 | 7D | U.F.O. fliers (5) | Dave and Tracy Mackey |
| Sun Jan 13, 2008 | 86D | Supposed makers of crop circles | Stella Daily and Bruce Venzke |
| Fri Dec 14, 2007 | 7D | "The X-Files" subj. | Manny Nosowsky |
| Fri Nov 23, 2007 | 9D | Big-headed sorts, for short | Paula Gamache |
| Sun Jul 1, 2007 | 92A | Venusians, e.g. (4) | Nancy Salomon and Bill Zais |
| Mon Jun 25, 2007 | 13D | Travelers from another galaxy, for short | Kurt Mengel and Jan-Michele Gianette |
| Sat May 12, 2007 | 4D | Saucerful? | Rich Norris |
| Tue May 1, 2007 | 37A | Sci-fi invaders | Courtenay Crocker and Nancy Salomon |
| Wed Mar 28, 2007 | 5D | Otherworldly ones, for short | Burton Clemans |
| Sun Feb 11, 2007 | 55D | Sci-fi figures (4) | Mark Feldman |
| Thu Feb 8, 2007 | 31D | The invaders in "The Invaders" | Dan Reichert |
| Sun Dec 24, 2006 | 7D | Venusians, e.g. (4) | Brendan Emmett Quigley |
| Fri Oct 20, 2006 | 39A | The "gods" in "Chariots of the Gods?," in brief | Ed Early |
| Fri Sep 1, 2006 | 58D | A.P. exam org. | David Quarfoot |
| Mon May 22, 2006 | 17A | Flying saucer fliers, for short (2) | Edgar R. Fontaine |
| Sun Feb 12, 2006 | 90A | French connections? (8) | Manny Nosowsky |
| Thu Jan 12, 2006 | 70A | UFO pilots (9) | Kyle Mahowald |
| Fri Dec 30, 2005 | 9D | G.R.E. distributor | David Liben-Nowell |
| Tue Dec 27, 2005 | 26A | Martians, e.g., in brief (2) | Lee Glickstein and Nancy Salomon |
| Sun Dec 4, 2005 | 13D | Some characters in "The X Files," for short | Eric Berlin and Craig Kasper |
| Mon Nov 28, 2005 | 25D | S.A.T. company (7) | Kevan Choset |
| Tue Oct 25, 2005 | 73A | Otherworldly visitors, for short | Kurt Mengel and Jan-Michele Gianette |
| Mon Oct 10, 2005 | 50A | Non-earthlings, for short (2) | Holden Baker |
| Mon Sep 26, 2005 | 62D | Aliens, for short (5) | Ethan Cooper |
| Sun Sep 25, 2005 | 18D | Brief strangers? | Matt Skoczen |
| Wed Sep 7, 2005 | 36A | 19-Across passengers | Andrea C. Michaels |
| Sun Aug 7, 2005 | 36D | Some warriors in "War of the Worlds" | Lee Glickstein and Nancy Salomon |
| Mon Aug 1, 2005 | 27D | UFO occupants (4) | Kendall Twigg |
| Sun Apr 24, 2005 | 122D | Some "Star Trek" convention costumes | Brendan Emmett Quigley |
| Thu Nov 25, 2004 | 48A | Sci-fi subjects, for short | Nancy Salomon and Earl W. Reed |
| Tue Aug 24, 2004 | 20A | UFO fliers (5) | Lynn Lempel |
| Thu Jun 3, 2004 | 18D | S.A.T. administrators | Mike Torch |
| Fri May 21, 2004 | 19A | "The X-Files" topics, for short | Eric Berlin |
| Thu Apr 15, 2004 | 19D | Sci-fi figures (4) | Manny Nosowsky |
| Tue Apr 13, 2004 | 25A | U.F.O. fliers (5) | Bill Ballard |
| Sun Mar 21, 2004 | 33A | Down-to-earth ones, in brief? | Roy Leban |
| Fri Nov 21, 2003 | 37A | Bug-eyed ones, for short? | David Ainslie Macleod |
| Tue Oct 28, 2003 | 61A | "Star Wars" extras, for short (2) | Brendan Emmett Quigley |
| Tue Sep 30, 2003 | 68A | Visitors from afar: Abbr. | Kevan Choset |
| Thu Aug 28, 2003 | 71A | Saucer contents, for short (3) | Elizabeth C. Gorski |
| Sun Jul 13, 2003 | 104A | Visitors from afar, briefly | Randolph Ross |
| Sun Mar 16, 2003 | 41D | Versailles connections | Elizabeth C. Gorski |
| Sun Feb 16, 2003 | 129A | Bug-eyed ones, maybe: Abbr. | Charles M. Deber |
| Mon Feb 10, 2003 | 20A | UFO crew (12) | Nancy Salomon and Harvey Estes |
| Fri Jan 24, 2003 | 29A | Saucer contents, for short? (3) | Manny Nosowsky |
| Wed Nov 20, 2002 | 73A | Venusians and others, for short | Manny Nosowsky |
| Sun Sep 8, 2002 | 48A | Supposed crop circle makers, for short (2) | Rich Norris |
| Sun Jun 16, 2002 | 56D | Space invaders, for short | Manny Nosowsky |
| Fri May 10, 2002 | 9D | Visitors to the Enterprise | Manny Nosowsky |
| Sat Feb 2, 2002 | 12D | Dolls of the 80's (2) | A. J. Santora |
| Tue Nov 13, 2001 | 61D | S.A.T. company (7) | Nancy Salomon and Bob Peoples |
| Sat Nov 10, 2001 | 4D | Latin connections | William I. Johnston |
| Mon Nov 5, 2001 | 35D | Aliens, for short (5) | Jenny Gutbezahl |
| Tue Sep 25, 2001 | 27D | Visitors to Earth, for short | A. J. Santora |
| Thu Aug 23, 2001 | 38D | Venusians, e.g. (4) | Peter Gordon |
| Sat Aug 18, 2001 | 39D | They can cover a lot of space | Rich Norris |
| Wed Jul 18, 2001 | 28A | UFO passengers | Elizabeth C. Gorski |
| Sun May 27, 2001 | 127A | Venusians, e.g. (4) | Dana Motley |
| Sun May 20, 2001 | 108A | "The X-Files" extras | Alan Arbesfeld |
| Tue May 1, 2001 | 43A | S.A.T. administrator | Stanley Newman |
| Mon Mar 12, 2001 | 70A | U.F.O. crew (12) | Gregory E. Paul |
| Sun Jan 21, 2001 | 86A | "The X-Files" extras, briefly (2) | Con Pederson |
| Wed Jan 17, 2001 | 23A | "Star Wars" walk-ons | Alan Arbesfeld |
| Mon Jan 15, 2001 | 13D | S.A.T. org. (4) | Janet R. Bender |
| Wed Nov 29, 2000 | 43D | Aliens, briefly | Peter Gordon |
| Sun Apr 23, 2000 | 34A | Visitors from afar (2) | Nancy Nicholson Joline |
| Tue Mar 21, 2000 | 33D | Sci-fi visitors (2) | Nick Grivas |
| Fri Oct 29, 1999 | 36D | Klingons, e.g. (2) | Nancy Salomon |
| Thu Oct 7, 1999 | 61D | Neptunians and others | Kelly Clark |
| Sat Jul 3, 1999 | 39A | "The Phantom Menace" creations | David J. Kahn |
| Wed Jun 30, 1999 | 56A | S.A.T. company (7) | Manny Nosowsky |
| Mon May 31, 1999 | 17A | Sci-fi villains, for short | Joey Crumley |
| Sun Mar 21, 1999 | 18D | Certain celeb news shows | Lloyd E. Pollet |
| Tue Feb 9, 1999 | 49A | Martians, e.g. | Janet R. Bender |
| Fri Nov 27, 1998 | 4D | Sci-fi creations | A. J. Santora |
| Fri Nov 13, 1998 | 62D | Alf and Mork | Jim Page |
| Sun Oct 25, 1998 | 119D | Dolls of the 80's (2) | Nancy Nicholson Joline |
| Sun Oct 18, 1998 | 88A | French links | David J. Kahn |
| Tue Aug 4, 1998 | 51A | Martians and such | Janet R. Bender |
| Mon Jun 29, 1998 | 53A | "Independence Day" invaders | Gregory E. Paul |
| Sun May 24, 1998 | 13D | Alien force, briefly | Harvey Estes and Nancy Salomon |
| Sun Apr 19, 1998 | 25A | Subjects for special fx artists | Rich Norris |
| Sat Mar 28, 1998 | 45A | Many Trekkie costumes | David J. Kahn |
| Sat Mar 21, 1998 | 36D | "The X-Files" subject | Rich Norris |
| Fri Jan 30, 1998 | 15D | Orly connections? | Martin Ashwood-Smith |
| Mon Jan 12, 1998 | 41A | Martians and Venusians, for short | John Greenman |
| Tue Dec 2, 1997 | 26D | U.F.O. crew (12) | Alan Olschwang |
| Thu Nov 13, 1997 | 40A | Non-earthlings, briefly | Manny Nosowsky |
| Tue Sep 30, 1997 | 61A | U.F.O. crew (12) | Nancy Schuster |
| Sun Sep 7, 1997 | 99A | Uranians, e.g. (2) | Randolph Ross |
| Fri Aug 29, 1997 | 49A | They make contact in "Contact" | Mark Diehl |
| Thu Mar 20, 1997 | 21D | Bug-eyed monsters | A. J. Santora |
| Wed Mar 12, 1997 | 64A | "Independence Day" villains | Brendan Emmett Quigley |
| Fri Nov 15, 1996 | 21A | They're encountered in close encounters | R. Norris |
| Fri Nov 1, 1996 | 34A | Sci-fi figures (4) | M. Rosen |
| Fri Oct 4, 1996 | 46A | Martians and Venusians | M. Ashwood-Smith |
| Sat Sep 7, 1996 | 60A | "Independence Day" attackers | B. White |
| Thu Sep 5, 1996 | 59D | U.F.O. pilots (9) | C. Millhauser |
| Sun Aug 11, 1996 | 12D | S.A.T. company (7) | M. Schneider |
| Wed May 29, 1996 | 34D | Saucer's contents, for short | R. Norris |
| Sun Dec 24, 1995 | 12D | S.A.T. company (7) | Frances Hansen |
| Sun Dec 17, 1995 | 122D | French connections (8) | Dean Niles |
| Sun Sep 10, 1995 | 13D | S.A.T. company (7) | David J. Kahn |
| Tue Sep 5, 1995 | 63D | French connections? (8) | Jonathan Schmatzbach |
| Sun Jun 11, 1995 | 7D | Connections in old Rome | Coral Amende |
| Sat May 27, 1995 | 53A | Alf and others | A.J. Santora |
| Sun May 7, 1995 | 122D | Visitors from afar (2) | Bob Klahn |
| Sun Mar 19, 1995 | 89A | Bug-eyed monsters, for short | Alex K. Justin |
| Sat Jan 21, 1995 | 6D | Popular 80's dolls | Charles E. Gersch |
| Sat Dec 10, 1994 | 59D | Unexpected visitors, for short | Bryant White |
| Sun Aug 14, 1994 | 111A | Diminutive suffixes | Deborah Kathryn Trombley |
| Mon Jul 25, 1994 | 23A | Saucer occupants, for short | Albert J. Klaus |
| Thu May 26, 1994 | 36A | Sci-fi regulars | Cathy Millhauser |
| Fri Mar 11, 1994 | 22A | S.A.T. org. (4) | A.J. Santora |
| Sun Feb 13, 1994 | 37D | Alf, Mork, etc. | Cathy Millhauser |
| Thu Dec 30, 1993 | 57D | U.F.O. occupants (4) | A.J. Santora |