We have a somewhat rare celestial event consisting of the alignment of seven planets in the night sky.
They are Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune. All will be visible with the naked eye except Uranus and Neptune which will require telescopic viewing. It is touted as "a billion years" event while it is in actuality a regular visual occurrence.
Beautiful — but not as incredibly rare as some media outlets might lead you to believe.
Regardless, if you have interests in astronomical phenomena this event will provide a fantastic visual spectacle.