* Astronomy

Mauna Kea observatories part of virtual telescope
A trio of observatories on Mauna Kea have come together to form the world's most powerful virtual telescope.
Known as the Extended SubMillimeter Array, or eSMA, the technique connects signals from eight dishes with 6-meter diameter with those from the 15-meter James Clerk Maxwell Telescope and the 10-meter Caltech Submillimeter Observatory to observe submillimeter light, which is invisible to the human eye.

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