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Dr. Stone Wiki

Science Underdogs ( () (がく) (ちょう) (せん) (しゃ) Kagaku no Chōsen-sha) is the two hundred and seventeenth chapter of the Dr. Stone manga.


As people celebrate finally having spotted Why-man on the lunar surface, Suika and Chrome lament that they've run out of time. The Kingdom prepares to build the final one way rocket, as the two amateur scientists are nowhere near completing their secret two-way plan.

A flash of inspiration hits Chrome, and the newbie scientist pair hold a conference the next morning. Chrome proposes a rocket that connects in 5 pieces, assembled in space. Most of the participants are shocked, but Xeno and Senku realistically consider the idea. The main issue is the number of interlocking parts necessary, but Ryusui points out it wouldn't be the first time they'd had a hellish crafting drive.

Having run the numbers, it's theoretically possible, and Chrome calls for everyone to hold a vote on which route they'd prefer. Using Sai's voting machines, it's a unanimous yes for the 2-way rocket. In order to complete this harder mission and organize their global teams, Senku declares they'll bring back the internet.

Characters in Order of Appearance[]

Chapter Notes[]

  • Chrome comes up with a different rocket design to rival Senku's.
  • A vote is placed to decide which method to use.
    • It's decided the world will build a multi-part combining rocket to ensure a safe two-way trip to the moon.
  • Senku plans to bring back the internet.


  • The map shown on the last page is the old world map rather than the one shown in the previous chapter.
  • Although once again Chrome was beaten by the modern timers of the past at coming up with a brilliant idea, for the first time this is one idea that wasn't actually accomplished in the modern world.
  • The five "Senku Birds", which are the sections of the rocket to be assembled in orbit, may be a reference to the five Thunderbirds, which are the vehicles from the 1965 british science fiction series of the same name.

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Volume 27 Terraforming4D Science: 14D Science: 24D Science: 3
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Story Arcs
Prologue Saga
Stone Formula Arc
Chapters 1234
Episodes 12
Vs. Tsukasa Arc
Chapters 56789101112
Episodes 345
Ishigami Village Saga
Kingdom of Science Arc
Chapters 131415161718192021222324252627282930313233
Episodes 5678910111213
Village Games Arc
Chapters 34353637383940
Episodes 131415
Village Origins Arc
Chapters 4142434445
Episodes 1617
Stone Wars Saga
Vs. Hyoga Arc
Chapters 4647484950
Episodes 1819
Communications Arc
Chapters 5152535455565758596061626364656667686970717273747576777879808182
Episodes 20212223242526272829303132333435
Source of the Petrification Saga
Age of Exploration Arc
Chapters 8384858687888990919293949596979899 100
Episodes 35Ryusui3637383940
Treasure Island Arc
Chapters 101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138
Episodes 4142434445464748495051525354
The Truth of the Petrification Saga
New America City Arc
Chapters 139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169
Episodes 555657
South America Arc
Chapters 170171172173174175176177178179180181182183184185186187188189190191192193
New Stone World Arc
Chapters 194195196197198199200
Globetrotting Arc
Chapters 201202203204205206207208209210211212
Stone to Space Saga
Moon Mission Arc
Chapters 213214215216217218219220221222223224225226227228229230231232