The astronaut needs an oxygen supply, protection from radiation, the ability to maintain temperature and pressure, and the means by which to communicate with the Shuttle. The EMU provides all of that for the astronauts.
The StarChild site is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC.
The StarChild Team
StarChild Graphics & Music: Acknowledgments
StarChild Project Leader: Dr. Laura A. Whitlock
Responsible NASA Official: Phil Newman