One of the most beautiful events that you can see in the night sky is a planetary alignment ... Read more: The Sun's Death Won't Be An Explosion. It Will Be Much, Much Slower While four planets ...

The sun and nine planets of our system orbiting. Everyone’s talking about the “rare planetary alignment.” Are there four bright planets visible to the naked eye tonight? Yes. Is it rare?

A planetary alignment goes down, up high, when more than two planets align in the sky. If three planets align, it’s known as a mini-planetary alignment; four makes for a small planetary ...

How rare is a planetary parade? It depends on the number of planets involved. Alignments of two or three planets are relatively common, occurring multiple times each year. A parade of four or five ...