Final answer:
A space exploration or an eclipse viewing would be worthwhile expeditions for a group of skilled individuals. With advancements in technologies, the universe can be explored more clearly. Viewing an eclipse, an accessible astronomical event, could also provide a memorable and educational experience.
Step-by-step explanation:
A worthwhile expedition for a group of skilled individuals to undertake could be one focused on space exploration. This could be particularly thrilling as astronomers and engineers are constantly innovating technologies to explore the more distant parts of the universe with greater clarity.
In addition, given that astronomical events such as eclipses are within a one-day drive for most people in the United States, a group could plan an expedition to witness this extraordinary spectacle. Not only would this provide an unforgettable experience, but it would also offer opportunities for scientific observations and studies.
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