Last July 7 at Wallops Flight Facility, NASA launched Black Brant IX , a suborbital sounding rocket to test “wireless-in-space” with XBee and Arduino :

Onboard the rocket was an experiment testing Exo-Brake technology. XBee was used to collect sensor data including temperature, air pressure, and 3-axis acceleration parameters. NASA is considering Exo-brakes as a possible solution for returning cargo from the International Space Station (ISS), orbiting platforms or as possible landing mechanisms in low-density atmospheres. This was one of many tests used to analyze its effectiveness, but the first to incorporate an XBee connected sensor network. If you would like to read more about the Exo-brake, check out this article.

As part of a program to determine potential applications of wireless technologies in space, NASA chose XBee® ZigBee modules and Arduino Mega