Mars, Jupiter, Uranus, Venus, Neptune, Mercury and Saturn all lined up to brighten up the night sky on Friday.

According to NASA, multi-planet lineups are visible "every few years," but a seven-planet alignment is particularly uncommon, as each planet's orbit varies, with some moving more quickly and Mercury, ...

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