A stunning "parade of planets" will grace the night sky this week, with all seven of Earth's celestial neighbors joining the show. Here's how to spot it and why it happens.

Five planets are visible to the naked eye, according to NASA: Mercury, Venus, Mars, Jupiter and Saturn. Mars will appear reddish and high in the sky, near the Gemini constellation, Star Walk said.

This Friday, all seven planets will be in the night sky for a brief period. Join the cosmic spectacle and learn where to look ...