The Big Bang theory suggests that 15 to 20 billion years ago the universe came into being as a result of a big explosion. The Steady State theory claims the universe has always existed and that all matter in it is created continuously, a little at a time.
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