Jupiter's Wavy Atmosphere Resembles Earth's Clouds in Photos from NASA's Juno Probe

Jupiter's Wavy Atmosphere Resembles Earth's Clouds in Photos from NASA's Juno Probe

Jupiter's Wavy Atmosphere Resembles Earth's Clouds in Photos from NASA's Juno Probe





Jupiter's Wavy Atmosphere Resembles Earth's Clouds in Photos from NASA's Juno Probe






						


An image of NASA's Juno spacecraft shows three small waves in the north equatorial belt of Jupiter, a dark band north of the planet's equator. The JunoCam instrument of the spacecraft captured this view during its fourth flight close to the planet on February 2, 2017.

            						    Credit: NASA / JPL-Caltech / SwRI / MSSS / JunoCam 


		KNOXVILLE, Tenn. - Jupiter and Earth may look like two completely different planets, but the atmospheres of the planets seem to have something in common, as revealed by new images of NASA's Juno mission. 

		From NASA Juno spaceship, which has been orbiting Jupiter since 2016, captured images of small-scale wave patterns in Jupiter's atmosphere during a series of nearby overflights called "perijoves". In images with the JunoCam instrument of the spacecraft, these small wave patterns bear some resemblance to the cloud formations found on Earth. 

		The images and data of Juno were revealed here at the 50th meeting of the Division of Planetary Sciences (DPS) of the American Astronomical Society. "We have discovered a lot of very small-scale waves in the atmosphere," said Glenn Orton, a research scientist at NASA's Jet Propulsion Laboratory in Pasadena, California, at a press conference on Monday (October 22).

The[[In photos: The amazing views of Juno de Juno.]

		"These are usually called mesoscale waves in the Earth's atmosphere," Orton said. On Jupiter, these so-called "atmospheric wave trains" are "high atmospheric structures that crawl one after the other as they travel the planet, with the highest concentration near Jupiter's equator," NASA officials said. he said in a statement. 

		These wave characteristics were first seen by two of NASA. Missions voyager when they flew by Jupiter in 1979 and again in 1996 when the agency's Galileo spacecraft was orbiting the planet. Now Juno has found the same type of waves, but the crests of the waves are much closer together than those seen in previous missions. 





						


Four images from NASA's Juno spacecraft show different types of small-scale atmospheric waves on Jupiter. The most typical waves run parallel to the equator (as in picture A), but sometimes the waves can tilt in different directions and even form curves.

            						    Credit: NASA / JPL-Caltech / SwRI / MSSS / JunoCam 


		The small-scale waves recently photographed by Juno are separated between 34 miles and 168 miles (55 and 270 kilometers), while galileo images and the Voyagers showed waves that were separated by 68 miles to 190 miles (110 to 305 km). 

		"As we see in the atmosphere of the Earth, we have some kind of disturbance of [Jupiter’s] the atmosphere, "said Orton." We see material like water that condenses into clouds. On Jupiter, this would probably be ammonia, a higher level condensate in the atmosphere. "     

		The jovial waves seem to behave a lot like gravity waves in the atmosphere of the Earth (not to be confused with gravitational waves), Orton said. "These things sink back into balance, and then they rise again, swinging from side to side, so every time you see that peak, you see a condensation in the Earth's atmosphere." By measuring the shadow of one of the waves, the researchers determined that it jutted approximately 6.2 miles (10 km) above the background clouds. 

		Here on Earth, these undulating clouds form above storm currents and other disturbances that can interrupt the flow of air into the atmosphere. Some of the waves seen in Jupiter's atmosphere resemble cyclones on Earth with "radius" characteristics, Orton said as he showed a side-by-side comparison of a JunoCam image and a satellite image of irma hurricane. 





						


Images from NASA's satellites show atmospheric gravity waves on Earth. 

            						    Credit: NASA / JPL-Caltech / MSSS 


		NASA officials said that while "most waves are expected to be atmospheric gravity waves," scientists are still analyzing the data and have not yet confirmed that this is the case.  

		While scientists work to determine exactly what creates these waves on Jupiter, they are also trying to explain why waves are not always present. After the Voyagers discovered the waves for the first time, there were periods during which the missions saw no waves on the planet. So far, Juno has been able to see these waves during each Jupiter flight.





						


In this image from NASA's Juno spacecraft, a cloud formation in Jupiter's atmosphere resembles a hurricane on Earth.

            						    Credit: NASA / JPL-Caltech / SwRI / MSSS / JunoCam and NOAA 


		The lack of waves at any given time may indicate that The atmosphere of jupiter It's static, said Orton. When the waves are present, they can present clues about what is happening more deeply within Jupiter's atmosphere. 



	Send an email to Hanneke Weitering at hweitering@space.com or follow it @hannekescience. Follow us on Twitter @Spacedotcom and in Facebook. Original article about Space.com.

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