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Did you know...?

Four billion years ago, a very large asteroid hit Mercury. It made a hole on Mercury's surface big enough to hold the state of Texas.

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.

StarChild Authors: The StarChild Team
StarChild Graphics & Music: Acknowledgments
StarChild Project Leader: Dr. Laura A. Whitlock
Curator:Meredith Gibb
Responsible NASA Official: Phil Newman
If you have comments or questions about the StarChild site, please send them to us.