The blue dot

Thirty years ago, on Valentine’s Day of 1990, the Voyager 1 spacecraft looked back one last time on its way out of the solar system and captured a picture of the Earth as a blurry dot in the darkness of the universe. The picture serves as a visual reminder of humanity’s vulnerability and the need for interdependence to assure our survival.

NASA released this sharper, reprocessed photo to mark the 30th anniversary of the image.