Pale Blue Dot (photograph)

The "Pale Blue Dot" is a famous photograph taken by NASA's Voyager 1 spacecraft in 1990 from about 6 billion kilometers away. In the image, Earth appears as a tiny, faint blue speck suspended in a hazy sunlight beam. The photograph highlights Earth's fragile, minuscule presence in the vastness of space, emphasizing the planet's unique beauty and vulnerability. Cosmologist Carl Sagan used the image to reflect on our shared responsibility to protect our environment and promote peace, reminding us of Earth's precious and singular nature in the cosmic expanse.