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Dr. Stone Wiki

Two Scientists ( (ふた) () () (がく) (しゃ) Futari no Kagakusha) is the 156th chapter of the Dr. Stone manga.


Senku and Taiju conducts experiments with rockets.

Soon he sends in an email to America and tells them of his activities.

The majority of the NASA scientists are shocked by the contents of his email wondering if he is truly a kid with all the devious things he has done one of the resolves not to get involved with him. However, Xeno is intrigued and tells Senku what he would need to conduct his experiment. Senku and Taiju are stunned by the price and Senku decides to get the money.

He flies out to America and meets with his father who is overjoyed to see him again but becomes disappointed when it turns out that Senku takes his credit card and flies back to America. Senku then buys his item and starts experimenting.

Meanwhile, Xeno remarks on the prowess of Science, as a colleague asked him what would happen if he is sent to the Stone Age and he states he would rule as a dictator. Byakuya compares his statement to that of despot. Another colleague asked what if they were other scientists and Zeno states he would simply illuminate the scientist while Byakuya states that there will always be scientists like his son.

A now older Senku decides that he has a lot to learn. To that end, he decides to travel to Africa to learn about Ebola while Taiju is shocked by his action.

Sometime later, Byakuya is preparing for his son's visit. Xeno is shocked to hear that the supposed Dr. Senku is the son of Byakuya and that he has arrived.

While admiring a monument of a ship, Senku is approached by Xeno who silently stands next to him, both obviously knowing each other. An excited Byakuya greets his son and ask why he seems spaced out, as Senku watches Xeno walking away and Senku tells his father nothing.

Characters in Order of Appearance

Chapter Notes

  • Senku meeting Dr. Xeno is seen.
  • Dr. Xeno's time as a NASA scientist is shown.
  • Byakuya is revealed to have encountered Xeno before the Petrification.
  • Senku eating lion was mentioned, as he took a trip to Africa.

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Chapters not yet in tankōbon format Terraforming
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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
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Village Games Arc
Chapters 34353637383940
Episodes 131415
Village Origins Arc
Chapters 4142434445
Episodes 1617
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Chapters 4647484950
Episodes 1819
Communications Arc
Chapters 5152535455565758596061626364656667686970717273747576777879808182
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Source of the Petrification Saga
Age of Exploration Arc
Chapters 8384858687888990919293949596979899 100
Episodes 35Ryusui
Treasure Island Arc
Chapters 101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138
The Truth of the Petrification Saga
New America City Arc
Chapters 139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169
South America Arc
Chapters 170171172173174175176177178179180181182183184185186187188189190191192193
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Chapters 194195196197198199200
Globetrotting Arc
Chapters 201202203204205206207208209210211212
Stone to Space Saga
Moon Mission Arc
Chapters 213214215216217218219220221222223224225226227228229230231232