Mars will be making its closest approach to Earth in two years, and thus, the mighty red planet, named for the god of war himself, will appear brighter, bigger, and bolder in the night sky. This Martian exclamation point will further amplify the experience of the alignment.

"This is, incidentally, why we sometimes observe planets appearing to approach closely to each other on the sky, as we view them along a line while they careen around the cosmic r

The seven planets will not be perfectly aligned, but will appear in an arc across the sky due to their orbital plane in the Solar System.

Venus, Mars, Jupiter, Saturn, Uranus, and Neptune will align in a straight line in the sky. While most of these planets will be visible to the naked eye, some will require binoculars for observation.