The blue supermoon will ‘swallow’ Saturn tonight — here’s when the rare ‘lunar occultation’ begins

The blue supermoon will ‘swallow’ Saturn tonight — here’s when the rare ‘lunar occultation’ begins

A composite picture of a lunar occultation of Saturn (Image credit: Jamie Cooper by means of Getty Images) Get your stargazing field glasses out! Overnight from Aug. 20 to 21,…

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