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

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, ...