To be clear here, they're not actually sending Arduinos into space, which would ...

ghostfish on June 21, 2012 | parent | context | favorite | on: Arduino-based ArduSat will run your code in space

To be clear here, they're not actually sending Arduinos into space, which would be silly. They're putting several of the same microcontroller used in Arduino on a custom PCB. The idea being that the Arduino environment is very beginner friendly.