Dark Patch on Earth's Closest Star
This page is the CodyCross answer for the clue below from All Things Water, Group 1281, Puzzle 5 (Ponds and Puddles).
Question is: Dark Patch on Earth's Closest Star
and the answer is: SUNSPOT
Word Meaning:
SUNSPOT — (astronomy) A region on the sun's surface with a lower temperature than its surroundings and intense magnetic activity.
Definitions from Wiktionary.