Fraser CainTelescopes work best when perched high on a mountain, above much of the murky, moisture-laden atmosphere that obscures their view of the night sky. A new Japanese observatory has come online, becoming the highest observatory in the world. The Tokyo Atacama Observatory is at the summit of Cerro Chajnantor, at 5,640 meters. It took 26 years to design and construct the observatory in such an extreme environment, but the view of the night sky will be pristine.
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