Jupiter and Saturn are about to appear closer in the sky than they have for 800 years, aligning as..

[Michie]

...'double planet'

• Jupiter and Saturn will align in the night sky on December 21. It'll be the closest they've appeared in 800 years.
• The two planets move into alignment, or conjunction, every 20 years. But this year they will be so close that they'll look like a "double planet."
• The last time Saturn and Jupiter were both this close and visible was in 1226.
• Here are the best ways to see this conjunction.
• 
  Continued below.
• Jupiter and Saturn are about to appear closer in the sky than they have for 800 years, aligning as a 'double planet'

 

[Chrystal-J]

It's so bright here in the city, I always miss seeing planets and stars in the sky.

 

[Gnarwhal]

This is going to be cool to see, I hope I remember to check it out!