The Hubble Space Telescope keeps an eye on the slowly changing weather of the solar system's giant planets.
is at its smallest since regular observation began 150 years ago. The Great Red Spot is a giant storm currently about twice as wide as Earth that swirls in the planet's southern hemisphere with wind speeds around its perimeter reaching a whopping 270 to 425 mph . But while this trademark storm may be weakening, the Hubble observations show that a new giant storm may be forming north of Jupiter's equator.
Astronomers call the new stormy region a"vortex street," as it consists of a row of interlocking cyclones that spin in alternating directions. If those storms were to merge, they could create a megastorm even greater than the Great Red Spot. Scientists, however, think that this merger is quite unlikely, the Space Telescope Science Institute, which manages Hubble's science operations, said in the statement.
Hubble has been observing Jupiter since the telescope reached Earth orbit in the early 1990s, and it wasn't until the last decade that scientists detected the formation of the cyclones making up the"vortex street."
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