Voyager 1 was launched in 1977 and is now 18.8 billion kilometers (11.7 billion miles) from Earth. Light from earth takes 18 hours to reach the craft. It is the first object made by humankind to enter interstellar space. On February 14, 1990, Voyager 1 was about 3.7 billion miles (6 billion kilometers) away and scientists commanded the spacecraft to turn its face towards the solar system and snap some pictures of the planets. Among them was this famous image of Earth, which astronomer Carl Sagan called the Pale Blue Dot.
Posted on: Sun, 10 Nov 2013 05:10:10 +0000
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