On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale Blue Dot" image is just as awe-inspiring today.

A similar photo of Earth was taken in 2013, although not as far out as the snap taken by Voyager 1. NASA describes the photo as "the day the Earth smiled", the wide-angle camera on NASA's Cassini ...