Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear to line up in the sky from our perspective here on Earth," John Conafay, ...

A parade of planets will be visible to skywatchers around the globe through the rest of this month and into February.

All month, four planets — Venus, Saturn, Jupiter ... from Earth's perspective, NASA said. (Though in reality, there are hundreds of millions of miles between them.) Meanwhile, Mars is at ...

All month, Venus, Saturn, Jupiter and ... Meanwhile, Mars is at "opposition" this month. That's when a planet and the sun are directly opposite each other with Earth in between.

Over the next few weeks, a stunning parade of planets will glow across the night sky, putting on a celestial spectacle that both amateur and seasoned stargazers can easily observe. All month, four ...