Jupiter and Saturn Join for Once-in-a-Lifetime Show
Genelle Weule, ABC Science
Skywatchers are in for a rare treat as Jupiter and Saturn come so close to each other they will almost look like a single shining planet in the sky.
Saturn has been trailing Jupiter across the night sky over the past few months.
The two planets will draw closer and closer in the next three weeks, until they appear together above the western horizon around an hour after sunset on December 21.