After Friday's spectacle, a "planet parade" of this size won't appear in the night sky for several years, experts say.
Heads up, skywatchers: a planet alignment is up for viewing this weekend, with Mercury, Venus, Jupiter, and Mars all visible ...
You can expect to see seven planets align Friday when Mercury joins Mars, Jupiter, Uranus, Neptune, Venus and Saturn. But not all of them will be easy to see, especially with the naked eye.