On Feb. 19, a "supermoon" -- a special event when the moon is full and also at its closest point to Earth in orbit -- will occur. But unfortunately, it will be invisible to skywatchers on Earth.
On Feb. 19, a "supermoon" -- a special event when the moon is full and also at its closest point to Earth in orbit -- will occur. But unfortunately, it will be invisible to skywatchers on Earth.
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