__ Borealis: the Northern Lights
Puzzle 10 of Making Sushi Pack
Question is: __ Borealis: the Northern Lights
and the answer is: AURORA
Word Meaning:
AURORA — An atmospheric phenomenon created by charged particles from the sun striking the upper atmosphere, creating coloured lights in the sky. It is usually named australis or borealis based on whether it is in the Southern or Northern Hemisphere respectively.
Definitions from Wiktionary.