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The momentary black spots are shadows cast by Jupiter's moons. Jupiter's Great Red Spot rotates counterclockwise, with a period of about 4.5 Earth days, [24] or 11 Jovian days, as of 2008. Measuring 16,350 km (10,160 mi) in width as of 3 April 2017, the Great Red Spot is 1.3 times the diameter of Earth. [21]
A well-known feature of Jupiter is the Great Red Spot, [103] a persistent anticyclonic storm located 22° south of the equator. It was first observed in 1831, [104] and possibly as early as 1665. [105] [106] Images by the Hubble Space Telescope have shown two more "red spots" adjacent to the Great Red Spot.
The Great Red Spot (GRS) is a persistent anticyclonic storm, 22° south of Jupiter's equator; observations from Earth establish a minimum storm lifetime of 350 years. [ 84 ] [ 85 ] A storm was described as a "permanent spot" by Gian Domenico Cassini after observing the feature in July 1665 with his instrument-maker Eustachio Divini . [ 86 ]
Jupiter’s Great Red Spot, the solar system’s largest storm, wiggles like gelatin and contracts like a stress ball, new observations from Hubble Space Telescope find.
Winds inside the storm have been measured at several hundreds of miles per hour, NASA astronomers said. ... new pictures taken by the Earth-orbiting Hubble space telescope show Jupiter's red spot ...
Once every 53.5 days, NASA's Juno probe screams over Jupiter's cloud, capturing stunning images in the process. NASA's $1 billion Jupiter probe just sent back dazzling new photos of the giant ...
A new study of Jupiter's Great Red Spot has found that the unbelievably persistent storm, which has been observed for at least 356 years, is deeper than previously thought, UPI reported. The ...
The Great Dark Spot (also known as GDS-89, for Great Dark Spot, 1989) was one of a series of dark spots on Neptune similar in appearance to Jupiter's Great Red Spot. In 1989, GDS-89 was the first Great Dark Spot on Neptune to be observed by NASA's Voyager 2 space probe. Like Jupiter's spot, the Great Dark Spots are anticyclonic storms.