Known as the "Pale Blue Dot" photo, the original image showed Earth as a tiny speck within a band of brightness caused by sunlight striking the spacecraft's instrument. The photograph was the result of a campaign led by scientist Carl Sagan to convince NASA to turn Voyager 1 around and take a photo of the planet where its story began. Just 34 minutes later, according to NASA, the spacecraft's camera shut down so the probe could save power.
https://www.space.com/amp/pale-blue-dot-earth-space-photo-remastered.html