In the photo, the planet appears as a single point of light pale blue, lost in the immensity of space. The Earth is also bathed in a ray of sunlight, dispersed from the camera of Voyager 1. The photo is part of a series of 60 shots, which form what Nasa calls "the family album of the Solar System", with photos of the Sun and six planets.
The spacecraft Voyager 1 was launched September 5, 1977, 16 days after its twin, Voyager 2. Both have passed the pillars of Hercules of the Solar System entering the interstellar space, that invisible border where the wind of particles coming from the Sun meets the wind between the stars. Voyager 1 has crossed in September 2013, followed five years later by Voyager 2, in November 2018.
In almost 43 years, the two probes have enhanced our knowledge of the Solar System, especially of its boundaries. On board of the Voyager you will also find a message in a bottle cosmic intended for any extraterrestrial civilizations: a golden disc with sounds and images of life on Earth.
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