On Sunday night, the moon is aligning for an event that has only happened five times since 1900.
A supermoon lunar eclipse is expected to happen between 9:06 p.m. Sunday and 12:28 a.m. Monday. The University of Kentucky's MacAdam Student Observatory will open its doors to the public for free, weather permitting.
The observatory is on top of the Rose Street Parking garage — parking structure No. 2 — at 301 Hilltop Avenue.
During a total lunar eclipse, the moon passes directly behind the Earth in its shadow. A "supermoon" will also occur because the moon is in its closest approach to Earth.
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The last supermoon lunar eclipse was in 1982, according to the National Aeronautics and Space Administration. If people miss the 2015 lunar supermoon eclipse, the next opportunity to view one won't occur until 2033.