June Night Sky: Witness the Alignment of 5 Planets.

On June 17, Saturn, Neptune, Jupiter, Mercury, and Uranus will align on one side of the sun, providing a rare opportunity to see five planets at once, although Neptune and Uranus may be challenging to spot. The alignment may be visible several days before and after June 17. The Summer Solstice, the longest day of the year, will occur on June 21 and is celebrated by many cultures around the world.