New Delhi, Dec. 3 -- The last supermoon of the year arrives this week, closing out 2025 with one more bright sky event. The skies will witness the December full moon - widely known as the Cold Moon - and Thursday will be the final chance to catch a supermoon before the calendar turns.

The name 'Cold Moon' has long been tied to the December full moon, a reference to the sharp drop in temperatures this time of year. The Almanac lists it as one of the traditional monthly full-moon names, each carrying some seasonal or cultural cue. December's label is literal: the cold lands first, then the moon.

This week's full moon is also a supermoon. According to NASA, a supermoon occurs when the moon reaches a point in its orbit where it swings close...