 Why were the Space Scouts sent on their mission?
So when the Chief of World Security told him that he had been selected as the answer to the Solar System's greatest mystery, Jery assumed that it was because of his mental agility. But when he got to Mars to find out why fifteen boys had vanished from a spaceship in mid-space, he found out that even his quick mind needed time to pierce the maze of out-of-this-world double-dealing. Security men were not hired for their loquaciousness. Because the speaker was Philip Baxter, Chief of Interplanetary Security, second only to the World President in power, and not even that in matters of security.
 to symbolize peace and harmony amongst the nations
 to research the environment on Mars  to symbolize peace and harmony amongst the nations  to show that anyone can travel in outer space  because the Brain told them to do so