Nation Worlds align this winter solstice: Jupiter and Saturn will look like a ‘double planet’ on Monday December 3, 2020December 19, 2020Wyatte Grantham-Philips, USA TODAYComments Off on Worlds align this winter solstice: Jupiter and Saturn will look like a ‘double planet’ on Monday For skygazers on Earth, Jupiter and Saturn will appear closer together on Dec. 21 than they have been since the Middle Ages, almost 800 years ago.