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Should the Next Big Observatories Be Built on the Moon?

As the next round of giant observatories nears completion, astronomers are starting to ponder what comes next. One exciting location to consider is the Moon. There's no atmosphere on the Moon, so a lunar telescope would act like a space telescope. Still, solid ground, lower gravity, and potentially human astronauts are available to do maintenance and make upgrades. A new paper reviews different kinds of telescopes that could be built on the Moon and their unique advantages over Earth- or space-based instruments.

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