Summary
People across the United States saw a supermoon called the "Cold Moon" light up the sky. A supermoon happens when the full moon is closer to Earth than usual, making it look bigger and brighter.
Key Facts
- The "Cold Moon" is the last full moon of the year.
- A supermoon appears bigger and brighter because it happens when the moon is closest to Earth.
- The term "supermoon" is not an official scientific term.
- NASA says a supermoon occurs when a full moon is at least 90% of its closest point to Earth, known as perigee.
- The Cold Moon is also sometimes called the "Long Night Moon."
- It follows other full moons like the Harvest Moon in October and the Beaver Moon in November.
- The first full moon of 2026 will be on January 3, known as the "Wolf Moon."
