A rare alignment of seven planets will occur on Friday evening, visible to the naked eye shortly after sunset. preston dyches from nasa explains the visibility details and challenges, while Tracy Becker notes the rarity of such events.

writer and producer of nasa’s monthly sky-watching video series, “What’s Up.”

nasa's monthly sky-watching video series.

mercury will be at its highest and brightest.

venus is one of the planets visible during the parade.

mars is one of the planets visible during the parade.