For astronomers, it’s a magical moment: you’re staring at a monitor, and a blurry image of a cosmological object sharpens up, revealing new details. We call this “closing the loop,” a reference to the ...

Please provide your email address to receive an email when new articles are posted on . ATLANTA – Nonarteritic ischemic optic neuropathy and optic neuritis are two of the most common types of optic ...