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Which celestial body was central to O'Brien's research?

  • Mars

  • The Sun

  • The Moon

  • Jupiter

Answer

The Moon was central to O'Brien's research. As a geologist, O'Brien studied the Moon's surface and composition to gain insights into its formation and evolution. By analyzing lunar samples and conducting experiments, O'Brien aimed to understand the processes that shaped the Moon and its role in the broader solar system.
Exploring the Stars: The Legacy of Brian O'Brien, Space Scientist Extraordinaire

Exploring the Stars: The Legacy of Brian O'Brien, Space Scientist Extraordinaire

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