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|Episode Title:||3D Ant|
|Japanese Title:||San Jigen Ari (3次元アリ)|
|Air Date:||June 24, 2012|
|Opening:||"Feel So Moon"|
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"3D Ant" is the 13th episode of the Space Brothers Anime.
Reiji grows concerned about the bracelet around everyone's wrist which monitors their stress level.
All teams receive a few physical, mental and at the end a letter writing task(s) to win over a journalist who is critical of space exploration.