What is "pale blue dot"

n. The planet Earth.

Pale Blue Dot is a photograph of planet Earth taken on February 14, 1990, by the Voyager 1 space probe from a record distance of about kilometers ( miles, 40.5 AU), as part of the Family Portrait series of images of the Solar System.

In the photograph, Earth's apparent size is less than a pixel; the planet appears as a tiny dot against the vastness of space, among bands of sunlight scattered by the camera's optics.

Voyager 1, which had completed its primary mission and was leaving the Solar System, was commanded by NASA to turn its camera around and take one last photograph of Earth across a great expanse of space, at the request of astronomer and author Carl Sagan.

Pale Blue Dot: A Vision of the Human Future in Space is a 1994 book by Carl Sagan. It is the sequel to Cosmos and was inspired by the famous Pale Blue Dot photograph, for which Sagan provides a poignant description. In this book, Sagan mixes philosophy about the human place in the universe with a description of the current knowledge about the Solar System. He also details a human vision for the future.

Pale Blue Dot is a photograph of Earth taken by the Voyager 1 space probe.

Pale Blue Dot can also refer to:

• Pale Blue Dot (book), a 1994 book by Carl Sagan
• Pale Blue Dot (album), a 2008 album by Benn Jordan
• Pale Blue Dot (Interlude), a 2008 song by American rock band Story of the Year
• Pale Blue Dot (Bliss n Eso song), a song by Australian rap group Bliss n Eso