Astronomy Picture of Day: Voyager at 90 AU# Astronomy - 天文
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Voyager at 90 AU
Illustration Credit: Walt Feimer, NASA
Explanation: Launched in 1977, Voyager 1 is now about 12 light-hours or 90 astronomical units (AU) from the
Sun, making this spacecraft humanity's most distant ambassador to the cosmos. Well beyond the orbits of the
outer planets, Voyager 1 is believed to be entering the realm of deep space near the edge of the heliosphere, the
region dominated by the solar wind and magnetic field. Causing some debate, new results fr
Illustration Credit: Walt Feimer, NASA
Explanation: Launched in 1977, Voyager 1 is now about 12 light-hours or 90 astronomical units (AU) from the
Sun, making this spacecraft humanity's most distant ambassador to the cosmos. Well beyond the orbits of the
outer planets, Voyager 1 is believed to be entering the realm of deep space near the edge of the heliosphere, the
region dominated by the solar wind and magnetic field. Causing some debate, new results fr