Supermoon Lunar Eclipse Puts on a Show

The coincidence of events won't be seen again until 2033.

Sunday's occurrence could be seen across the United States. The red-tinted moon was blocked by clouds in some areas.

A supermoon occurs when a full moon happens when it is at the closest point in its elliptical orbit around Earth, making the full moon appear up to 14 percent larger and brighter than usual. A lunar eclipse occurs when the moon passes into Earth's shadow, often turning a blood red color.

Sunday’s supermoon lunar eclipse marks the first time the spectacle has occurred in more than three decades.

The coincidence of events is so rare it won't be seen again until 2033.