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The Rocket's Hard Truth (ロケットの (しん) (そう) Roketto no Shinsō) is the two hundred and ninth chapter of the Dr. Stone manga.


The chapter begins with the globetrotting team heading for Australia to collect the aluminum ore (bauxite) for the body of the rocket ship. After weathering a storm, they arrive on the northern tip of Australia. Chrome challenges Chelsea to a rock-finding competition, but Chelsea says it won't be much of one given the ground they're standing on is made of it.

The Kingdom of Science begin reviving people and mining the ore, when Ryusui mentions wanting a bucket-wheel excavator. Unfortunately, they only have manpower and a dwindling supply of Revival Fluid. Perfectly timed, Ukyo and Yo arrive on a boat carrying a supply of corn, along with the petrification device from Treasure Island.

Replacing the battery with one of Kaseki's, they realize that it wasn't Kaseki crafting skill that was preventing the device working, but rather that it was too damaged to activate. Having a working device is the key component to Senku's current plan: rushing up in a rocket, without a return plan and petrifying themselves on the moon, waiting for humanity to bring them back.

Characters in Order of Appearance[]

Chapter Notes[]

  • The team plans on starting to make the body of the rocket ship.
  • Senku and the others arrive in Australia.
  • Bauxite is found and mined using the manpower revived in Australia.
  • Ukyo and Yo arrive from Corn City, delivering corn for revival fluid and the petrification device Joel held.
    • That device is the only one that works, as the ones in South America are too old and damaged.
  • Senku plans to send a pilot, a fighter, and a scientist up to the moon to stop Why-man, then use the working device to petrify themselves and await recovery when humanity reaches the point of being able to make round-trips to the moon.
    • The picture could imply that Senku plans for himself, Ryusui and Tsukasa to make the sacrifice.


  • Page 1 depicts Suika in her full melon helmet rather than her melon collar.

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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