Building the world’s highest-resolution telescope

Enlarge / The Y-shaped Navy Precision Optical Interferometer in northern Arizona can function like a telescope with a mirror 400 meters wide.

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If Lowell Observatory’s Gerard van Belle gets his way, someday soon you’ll be watching an exoplanet cross the face of its star, hundreds of light-years from the Earth. He can’t show you that right now, but he should be able to when the new mirrors are installed at the Navy Precision Optical Interferometer in…

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