140+ Space Knock Knock Jokes That Are Out of This World

Space humor has universal appeal. Whether you’re five or fifty, there’s something magical about rockets, astronauts, aliens, and galaxies. That’s why space knock knock jokes are such a hit in classrooms, birthday parties, and family game nights. The classic knock knock format is simple, interactive, and perfect for kids—while space themes add clever wordplay that even adults can enjoy.

These funny space knock knock jokes blend outer space themes with silly punchlines. From astronaut knock knock jokes to alien knock knock jokes, planet puns, and clean classroom humor, this ultimate list includes the best outer space knock knock jokes and space jokes for kids that are truly out of this world.

Check more here 150+ Short Dumb Jokes That Are So Stupid They’re Funny

What Makes Space Knock Knock Jokes So Funny?

Space knock knock jokes are funny because they combine classic knock knock humor with space themes like aliens, astronauts, planets, and rockets. The mix of science terms and silly wordplay makes them perfect for kids, classrooms, and space lovers of all ages.

Classic Space Knock Knock Jokes

1. Knock, knock. Who’s there? Star. Star who? Star light, star bright, I’m laughing tonight!
2. Knock, knock. Who’s there? Moon. Moon who? Moon me over, it’s your birthday!
3. Knock, knock. Who’s there? Rocket. Rocket who? Rocket around the clock!
4. Knock, knock. Who’s there? Galaxy. Galaxy who? Galaxy your seatbelt, we’re blasting off!
5. Knock, knock. Who’s there? Orbit. Orbit who? Orbit late to laugh!
6. Knock, knock. Who’s there? Meteor. Meteor who? Meteor showers bring giggles!
7. Knock, knock. Who’s there? Astro. Astro who? Astro-nomical laughs ahead!
8. Knock, knock. Who’s there? Comet. Comet who? Comet over and laugh!
9. Knock, knock. Who’s there? Nova. Nova who? Nova body jokes like this!
10. Knock, knock. Who’s there? Saturn. Saturn who? Saturn down, this is funny!

Alien Knock Knock Jokes

11. Knock, knock. Who’s there? Alien. Alien who? Alien the mood with laughter!
12. Knock, knock. Who’s there? UFO. UFO who? UFO get it!
13. Knock, knock. Who’s there? Mars. Mars who? Mars bars from space!
14. Knock, knock. Who’s there? ET. ET who? ET phone your leader!
15. Knock, knock. Who’s there? Cosmic. Cosmic who? Cosmic and get it!
16. Knock, knock. Who’s there? Pluto. Pluto who? Pluto come back, we miss you!
17. Knock, knock. Who’s there? Venus. Venus who? Venus flytrap your jokes!
18. Knock, knock. Who’s there? Orbit. Orbit who? Orbit we go again!
19. Knock, knock. Who’s there? Beam. Beam who? Beam me up with laughter!
20. Knock, knock. Who’s there? Spacey. Spacey who? Spacey you later!

Astronaut Knock Knock Jokes

21. Knock, knock. Who’s there? Astro. Astro who? Astro-nomical fun!
22. Knock, knock. Who’s there? Suit. Suit who? Suit up for space laughs!
23. Knock, knock. Who’s there? Launch. Launch who? Launch and laugh!
24. Knock, knock. Who’s there? NASA. NASA who? NASA nice joke?
25. Knock, knock. Who’s there? Helmet. Helmet who? Helmet down, that’s funny!
26. Knock, knock. Who’s there? Gravity. Gravity who? Gravity is optional!
27. Knock, knock. Who’s there? Shuttle. Shuttle who? Shuttle we dance in space?
28. Knock, knock. Who’s there? Zero. Zero who? Zero gravity, zero worries!
29. Knock, knock. Who’s there? Commander. Commander who? Commander laughs!
30. Knock, knock. Who’s there? Spacewalk. Spacewalk who? Spacewalk into fun!

Planet-Themed Knock Knock Jokes

31. Knock, knock. Who’s there? Mercury. Mercury who? Mercury rising laughs!
32. Knock, knock. Who’s there? Venus. Venus who? Venus nice to meet you!
33. Knock, knock. Who’s there? Earth. Earth who? Earth to you—it’s funny!
34. Knock, knock. Who’s there? Mars. Mars who? Mars-velous jokes!
35. Knock, knock. Who’s there? Jupiter. Jupiter who? Jupiter not funny?
36. Knock, knock. Who’s there? Saturn. Saturn who? Saturn day laughs!
37. Knock, knock. Who’s there? Neptune. Neptune who? Neptune the door!
38. Knock, knock. Who’s there? Uranus. Uranus who? Uranus so silly!
39. Knock, knock. Who’s there? Pluto. Pluto who? Pluto the jokes!
40. Knock, knock. Who’s there? Solar. Solar who? Solar system giggles!

Space Knock Knock Jokes for Kids

41. Knock, knock. Who’s there? Moon. Moon who? Moon pies in space!
42. Knock, knock. Who’s there? Star. Star who? Star jumping with joy!
43. Knock, knock. Who’s there? Rocket. Rocket who? Rocket ship hooray!
44. Knock, knock. Who’s there? Comet. Comet who? Comet to play!
45. Knock, knock. Who’s there? Astro. Astro who? Astro not?
46. Knock, knock. Who’s there? Planet. Planet who? Planet party time!
47. Knock, knock. Who’s there? Sky. Sky who? Sky high laughs!
48. Knock, knock. Who’s there? Alien. Alien who? Alien around fun!
49. Knock, knock. Who’s there? Orbit. Orbit who? Orbit you laugh!
50. Knock, knock. Who’s there? Galaxy. Galaxy who? Galaxy for laughs!

Space Knock Knock Jokes for Adults

51. Knock, knock. Who’s there? Quantum. Quantum who? Quantum leap into humor!
52. Knock, knock. Who’s there? Black hole. Black hole who? Black hole lot of laughs!
53. Knock, knock. Who’s there? Relativity. Relativity who? Relatively funny!
54. Knock, knock. Who’s there? Telescope. Telescope who? Telescope your humor!
55. Knock, knock. Who’s there? Orbit. Orbit who? Orbit too clever!
56. Knock, knock. Who’s there? Gravity. Gravity who? Gravity pulling jokes down!
57. Knock, knock. Who’s there? Eclipse. Eclipse who? Eclipse your attention!
58. Knock, knock. Who’s there? Astronomer. Astronomer who? Astronomer laughs!
59. Knock, knock. Who’s there? Milky Way. Milky Way who? Milky Way to laughter!
60. Knock, knock. Who’s there? Cosmos. Cosmos who? Cosmos and get it!

Clean Outer Space Knock Knock Jokes

61. Knock, knock. Who’s there? Star. Star who? Star smiling!
62. Knock, knock. Who’s there? Moon. Moon who? Moon light giggles!
63. Knock, knock. Who’s there? Rocket. Rocket who? Rocket fun!
64. Knock, knock. Who’s there? Planet. Planet who? Planet happy day!
65. Knock, knock. Who’s there? Sky. Sky who? Sky is the limit!
66. Knock, knock. Who’s there? Space. Space who? Space for laughter!
67. Knock, knock. Who’s there? Orbit. Orbit who? Orbit bright smile!
68. Knock, knock. Who’s there? Galaxy. Galaxy who? Galaxy joy!
69. Knock, knock. Who’s there? Astro. Astro who? Astro good day!
70. Knock, knock. Who’s there? Solar. Solar who? Solar-brate good times!

Short Space Knock Knock Jokes (Quick Laughs)

71. Knock, knock. Who’s there? Star. Star who? Star power!
72. Knock, knock. Who’s there? Moon. Moon who? Moon-tastic!
73. Knock, knock. Who’s there? Mars. Mars who? Mars-velous!
74. Knock, knock. Who’s there? Pluto. Pluto who? Pluto laughs!
75. Knock, knock. Who’s there? Rocket. Rocket who? Rocket fast!
76. Knock, knock. Who’s there? Orbit. Orbit who? Orbit fun!
77. Knock, knock. Who’s there? Galaxy. Galaxy who? Galaxy cool!
78. Knock, knock. Who’s there? Comet. Comet who? Comet quick!
79. Knock, knock. Who’s there? Astro. Astro who? Astro silly!
80. Knock, knock. Who’s there? Solar. Solar who? Solar-brate!

More Space Knock Knock Jokes

81. Knock, knock. Who’s there? Launch. Launch who? Launch time laughs!
82. Knock, knock. Who’s there? Beam. Beam who? Beam smiling!
83. Knock, knock. Who’s there? Orbit. Orbit who? Orbit hilarious!
84. Knock, knock. Who’s there? Nova. Nova who? Nova jokes!
85. Knock, knock. Who’s there? Shuttle. Shuttle who? Shuttle laugh!
86. Knock, knock. Who’s there? Crater. Crater who? Crater giggles!
87. Knock, knock. Who’s there? Starship. Starship who? Starship fun!
88. Knock, knock. Who’s there? Lightyear. Lightyear who? Lightyear laughter!
89. Knock, knock. Who’s there? Solar flare. Solar flare who? Solar flare fun!
90. Knock, knock. Who’s there? Nebula. Nebula who? Nebula joke!
91. Knock, knock. Who’s there? Meteor. Meteor who? Meteor laugh!
92. Knock, knock. Who’s there? Orbit. Orbit who? Orbit silly!
93. Knock, knock. Who’s there? Astro. Astro who? Astro-tastic!
94. Knock, knock. Who’s there? Galaxy. Galaxy who? Galaxy grin!
95. Knock, knock. Who’s there? Spacewalk. Spacewalk who? Spacewalk funny!
96. Knock, knock. Who’s there? Star. Star who? Star struck!
97. Knock, knock. Who’s there? Planet. Planet who? Planet fun!
98. Knock, knock. Who’s there? Rocket. Rocket who? Rocket joy!
99. Knock, knock. Who’s there? Moon. Moon who? Moon giggle!
100. Knock, knock. Who’s there? Alien. Alien who? Alien happy!
101. Knock, knock. Who’s there? Saturn. Saturn who? Saturn laughs!
102. Knock, knock. Who’s there? Jupiter. Jupiter who? Jupiter smile!
103. Knock, knock. Who’s there? Venus. Venus who? Venus fun!
104. Knock, knock. Who’s there? Earth. Earth who? Earth-shaking joke!
105. Knock, knock. Who’s there? Pluto. Pluto who? Pluto bright!
106. Knock, knock. Who’s there? Sun. Sun who? Sun shine humor!
107. Knock, knock. Who’s there? Eclipse. Eclipse who? Eclipse grin!
108. Knock, knock. Who’s there? Comet. Comet who? Comet cheerful!
109. Knock, knock. Who’s there? Orbit. Orbit who? Orbit laugh!
110. Knock, knock. Who’s there? Galaxy. Galaxy who? Galaxy blast!
111. Knock, knock. Who’s there? Astro. Astro who? Astro-nice!
112. Knock, knock. Who’s there? Rocket. Rocket who? Rocket roar!
113. Knock, knock. Who’s there? Moon. Moon who? Moon party!
114. Knock, knock. Who’s there? Star. Star who? Star bright!
115. Knock, knock. Who’s there? Planet. Planet who? Planet happy!
116. Knock, knock. Who’s there? Solar. Solar who? Solar laughs!
117. Knock, knock. Who’s there? Orbit. Orbit who? Orbit fun!
118. Knock, knock. Who’s there? Nova. Nova who? Nova grin!
119. Knock, knock. Who’s there? Shuttle. Shuttle who? Shuttle joy!
120. Knock, knock. Who’s there? Space. Space who? Space party!
121. Knock, knock. Who’s there? Galaxy. Galaxy who? Galaxy smiles!
122. Knock, knock. Who’s there? Mars. Mars who? Mars magic!
123. Knock, knock. Who’s there? Saturn. Saturn who? Saturn silly!
124. Knock, knock. Who’s there? Venus. Venus who? Venus shine!
125. Knock, knock. Who’s there? Jupiter. Jupiter who? Jupiter joy!
126. Knock, knock. Who’s there? Neptune. Neptune who? Neptune laugh!
127. Knock, knock. Who’s there? Uranus. Uranus who? Uranus giggle!
128. Knock, knock. Who’s there? Pluto. Pluto who? Pluto cheer!
129. Knock, knock. Who’s there? Starship. Starship who? Starship fun!
130. Knock, knock. Who’s there? Orbit. Orbit who? Orbit star!
131. Knock, knock. Who’s there? Sun. Sun who? Sun smile!
132. Knock, knock. Who’s there? Moon. Moon who? Moon glow!
133. Knock, knock. Who’s there? Galaxy. Galaxy who? Galaxy laugh!
134. Knock, knock. Who’s there? Rocket. Rocket who? Rocket zoom!
135. Knock, knock. Who’s there? Astro. Astro who? Astro laugh!
136. Knock, knock. Who’s there? Planet. Planet who? Planet party!
137. Knock, knock. Who’s there? Comet. Comet who? Comet clap!
138. Knock, knock. Who’s there? Shuttle. Shuttle who? Shuttle cheer!
139. Knock, knock. Who’s there? Orbit. Orbit who? Orbit boom!
140. Knock, knock. Who’s there? Solar. Solar who? Solar spark!

How to Make Your Own Space Knock Knock Joke

Choose a space word like rocket, moon, or galaxy. Turn it into a playful pun. Keep the punchline simple and easy to understand. Test it on kids for instant feedback. Shorter jokes usually get bigger laughs.

Where to Use Space Knock Knock Jokes

These space jokes for kids work great as classroom icebreakers, birthday party games, STEM camp activities, social media captions, or fun family moments.

Conclusion – Keep the Laughter Orbiting

Space humor never gets old, and the knock knock format is timeless. Whether you love outer space knock knock jokes, alien humor, or astronaut wordplay, these 140+ jokes prove that laughter truly is universal. Keep sharing, keep smiling, and let the giggles orbit around you.

FAQs

Space jokes for kids
Space jokes for kids are simple, clean, and easy to understand, often featuring rockets, planets, and aliens with playful word twists.

Space knock knock jokes one liners
Short knock knock jokes use quick space-themed punchlines that are easy to tell at parties or in classrooms.

Space knock knock jokes for kids
Kid-friendly space knock knock jokes avoid complicated science terms and focus on fun, safe humor.

Space knock knock jokes for adults
Adult versions include clever astronomy puns and smart wordplay while still keeping the classic knock knock format.