The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up next to the "King of the Planets" as it voyages through the stars of the constellation Gemini.

This month's full moon is set to appear on August 8 and 9, 2025, and is estimated to reach peak illumination at 3:55 a.m. EDT on August 9, but depending on your timezone, you may catch its peak on ...