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Stratospheric winds measured on Jupiter for the first time 5nvklj





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Stratospheric winds measured on Jupiter for the first time

Dragon
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Post by Dragon Mon Mar 22, 2021 2:52 am

Using the Atacama Large Millimeter/submillimeter Array (ALMA), in which the European Southern Observatory (ESO) is a partner, a team of astronomers has directly measured winds in Jupiter's middle atmosphere for the first time.

By analyzing the aftermath of a comet collision from the 1990s, the researchers have revealed incredibly powerful winds, with speeds of up to 1450 kilometers an hour, near Jupiter's poles.

They could represent what the team have described as a "unique meteorological beast in our solar system."


Source


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Stratospheric winds measured on Jupiter for the first time 334pu7m
Dragon
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Post by Dragon Mon Mar 22, 2021 2:54 am

Stratospheric winds measured on Jupiter for the first time Powerfulstra
Credit: ESO/L. Calçada & NASA/JPL-Caltech/SwRI/MSSS

An artist's impression of winds in Jupiter's stratosphere near the planet's south pole, with the blue lines representing wind speeds.

These lines are superimposed on a real image of Jupiter, taken by the JunoCam imager aboard NASA's Juno spacecraft.

Jupiter's famous bands of clouds are located in the lower atmosphere, where winds have previously been measured.

But tracking winds right above this atmospheric layer, in the stratosphere, is much harder since no clouds exist there.

By analysing the aftermath of a comet collision from the 1990s and using the ALMA telescope, in which ESO is a partner, researchers have been able to reveal incredibly powerful stratospheric winds, with speeds of up to 1450 kilometres an hour, near Jupiter's poles.


Source / Image Courtesy


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Stratospheric winds measured on Jupiter for the first time 334pu7m
Dragon
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Stratospheric winds measured on Jupiter for the first time Empty Re: Stratospheric winds measured on Jupiter for the first time

Post by Dragon Mon Mar 22, 2021 2:55 am



This video shows an artist’s animation of winds in Jupiter’s stratosphere near the planet’s south pole, with the blue lines representing wind speeds.


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Stratospheric winds measured on Jupiter for the first time 334pu7m

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