page_title: Discovery and exploration of the Solar System
hierarchical_section_title: Discovery and exploration of the Solar System
caption_attribution_description: English: This is the "Pale Blue Dot" photograph of the Earth taken by the Voyager 1 spacecraft on February 14, 1990. The Earth is the relatively bright speck of light about halfway across the uppermost sunbeam. The original version of this image can be obtained from NASA. The original caption reads as follows: This narrow-angle color image of the Earth, dubbed 'Pale Blue Dot', is a part of the first ever 'portrait' of the solar system taken by Voyager 1. The spacecraft acquired a total of 60 frames for a mosaic of the solar system from a distance of more than 4 billion miles from Earth and about 32 degrees above the ecliptic. From Voyager's great distance Earth is a mere point of light, less than the size of a picture element even in the narrow-angle camera. Earth was a crescent only 0.12 pixel in size. Coincidentally, Earth lies right in the center of one of the scattered light rays resulting from taking the image so close to the sun. This blown-up image of the Earth was taken through three color filters -- violet, blue and green -- and recombined to produce the color image. The background features in the image are artifacts resulting from the magnification. 中文: 这是从40亿英里外的太空拍摄的地球照片，可见地球只是太阳光束上的一个小点而已（图中被人工加上的蓝圈内小点）
context_page_description: Discovery and exploration of the Solar System is observation, visitation, and increase in knowledge and understanding of Earth's "cosmic neighborhood". This includes the Sun, Earth and the Moon, the major planets Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune, their satellites, as well as smaller bodies including comets, asteroids, and dust.
  The Solar System — our Sun’s system of planets, moons, and smaller debris — is humankind’s cosmic backyard. Small by factors of millions compared to interstellar distances,
  the spaces between the planets are daunting, but technologically surmountable
  — NASA
context_section_description: Discovery and exploration of the Solar System is observation, visitation, and increase in knowledge and understanding of Earth's "cosmic neighborhood". This includes the Sun, Earth and the Moon, the major planets Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune, their satellites, as well as smaller bodies including comets, asteroids, and dust.
  The Solar System — our Sun’s system of planets, moons, and smaller debris — is humankind’s cosmic backyard. Small by factors of millions compared to interstellar distances,
  the spaces between the planets are daunting, but technologically surmountable
  — NASA
caption: A photo of Earth (circled) taken by Voyager 1, 6.4 billion kilometers (4 billion miles) away. The streaks of light are diffraction spikes radiating from the Sun (off frame to the left). This photograph is known as Pale Blue Dot.
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