What is true about the academic credentials required for senior research positions at NASA?

Answer

While many senior roles are held by Ph.D. holders, the agency employs scientists with Master's degrees or significant professional experience instead of terminal degrees.

Although a doctorate is common for senior research roles, the agency employs scientists at various levels, accepting advanced degrees lower than a Ph.D. or equivalent significant professional experience in lieu of a terminal degree.

What is true about the academic credentials required for senior research positions at NASA?
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