If the Earth was any closer to the Sun, it would be too hot to support life. If the Earth was any farther away from the Sun, it would be too cold to support life.
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
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StarChild Project Leader: Dr. Laura A. Whitlock
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