From Halopedia, the Halo wiki
Eternal Spring was assigned to Onyx and the planetary survey team in the area of Zone 67. After Camp Currahee was established there, Eternal Spring agreed to devote nine percent of his runtime to the SPARTAN-III Program. He got along well with Kurt Ambrose, who was happy for the Eternal Spring's help, despite his occasional theatrics.
A sculpture by Auguste Rodin is also named "Eternal Spring".
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