A big storm in the southern hemisphere of neptune?
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When Voyager 2 passed by Neptune in 1989, the images it returned surprised scientists; it saw an immense oval dark storm in the planet's southern hemisphere as big as Earth itself! Called the Great Dark Spot, it had measured wind speeds of a staggering 2,100 kph, the fastest wind ever measured in the solar system.
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When Voyager 2 passed by Neptune in 1989, the images it returned surprised scientists; it saw an immense oval dark storm in the planet's southern hemisphere as big as Earth itself! Called the Great Dark Spot , it had measured wind speeds of a staggering 2,100 kph, the fastest wind ever measured in the solar system.
As the craft zoomed by, it snapped pictures of two giant storms brewing in Neptune’s southern hemisphere. Scientists dubbed the storms “The Great Dark Spot” and “Dark Spot 2.” Just five years later, in 1994, NASA’s Hubble Space Telescope took sharp images of Neptune from Earth’s distance of 2.7 billion miles (4.3 billion kilometers).
Scientists first saw a Great Dark Spot on Neptune in 1989, when NASA's Voyager 2 probe flew past the mysterious blue planet. As the spacecraft zoomed by, it snapped pictures of two giant storms...
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The Great Dark Spot was an Earth-sized vortex observed in the southern hemisphere of Neptune by Voyager 2 in 1989. The storm had some of the highest recorded wind speeds in the Solar System at approximately 1,500 mph and rotated around the planet once every 18.3 hours.
The surface temperature of Neptune is about -220 degrees Celsius. It is the coldest planet in the solar system. In 1989, Voyager 2 tracked a large dark storm on the southern hemisphere of Neptune called as ‘Great Dark Spot’ which was big enough to engulf the entire Earth.
Scientists from the Outer Planet Atmospheres Legacy (OPAL) project first detected a small dark spot that appeared to be a storm in the southern hemisphere of Neptune when they were analysing the images of the planet in 2015.