The Pale Blue Dot is a photograph of planet Earth taken in 1990 by the Voyager 1 spacecraft from a record distance of about 6 billion kilometers (3.7 billion miles) from Earth, as part of the solar system Family Portrait series of images. In the photograph, Earth is shown as a tiny dot (0.12 pixel in size) against the vastness of space. The Voyager 1 spacecraft, which had completed its primary mission and was leaving the Solar System, was commanded by NASA to turn its camera around and to take a photograph of Earth across a great expanse of space, at the request of Carl Sagan.
Subsequently, the title of the photograph was used by Sagan as the main title of his 1994 book, Pale Blue Dot: A Vision of the Human Future in Space.
Read more about Pale Blue Dot: Background, Photograph, Effects of Polarization and Scattering of Light, Distance, Camera, Reflections By Sagan
Famous quotes containing the words pale and/or blue:
“Ah, Sun-flower, weary of time,
Who countest the steps of the Sun,
Seeking after that sweet golden clime
Where the traveller’s journey is done:
Where the Youth pined away with desire,
And the pale Virgin shrouded in snow
Arise from their graves, and aspire
Where my Sun-flower wishes to go.”
—William Blake (1757–1827)
“Roll on, thou deep and dark blue Ocean,—roll!
Ten thousand fleets sweep over thee in vain;
Man marks the earth with ruin,—his control
Stops with the shore;”
—George Gordon Noel Byron (1788–1824)