Facts About Earth - Science@NASA
http://go.microsoft.com/fwlink/?LinkID=617350
WEBQuick Facts. Length of Day. 23.9 hours. Length of Year. 365.25 days. Distance from Sun. 93,327,712 miles / 150,196,428 kilometers. One Way Light Time to Sun. 8.350022 minutes. While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface.
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