A rare planetary alignment will make six planets visible shortly after sunset this weekend. Here's which planets you could see and the best way to view.

Tonight, a unique celestial event will occur as a waxing gibbous moon and the bright planet Jupiter align in the sky. This event offers a great opportunity for stargazers to observe two of the most noticeable objects in the night sky.

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those dimensions would make the gas giant big enough to fit 2,000 ...