Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

We'll see six planets in the first part of February – Mars, Jupiter, Uranus, Neptune, Venus and Saturn – and on Feb. 28, they'll be joined by Mercury. But not all of them will be visible to ...

Though such alignments aren't unheard of, this particular formation was special due to the sheer number of planets visible ...