A wave of new discoveries of NASA’s Juno Jupiter’s mission
Juno He reached Jupiter System in 2016, but a failed thrust meant that it is now stuck in a wide polar orbit that brings it closer to Jupiter and its moons every 53 days. Even so, the duration of those Flyby, Juno has accumulated a group of high quality data on Jupiter’s atmosphere, even at the planet’s poles, which had not previously studied in detail.
In the north pole of Jupiter there is a lid of stratospheric mist, which Juno has measured to be colder than its surroundings in 52 degrees Fahrenheit (11 degrees Celsius). Around the polar lid there are stream currents that blow more than 100 miles per hour (161 kilometers per hour). Below The Haze, The North Polar Region is Inhabited by One Giant, Central Cyclone About 1,864 thousand (3,000 kilometers) Across, Surrouted by ITS “Groupies” – Eight Smaller Cyclones Between 1,800 and 2,800 and 2,800 and 2,800 and 2,800s, in -kiles in -kiles in -kiles Kilom00 and 2,800 and 2,800 and 2,800 and 2,800 and 2,800 and 2,800 and 2,800 and 2, in size, size, in size, in size, Siagnserders and 2,800 and 2,800 and 2,800 and 2,800 and 2,800 and 2,800 and 2,800 and 2, and 2,800. Any similar phenomenon we have in Land.
Juno has been tracking the movement of this cyclone system with visible and infrared light (in the appearance of heat that comes from deep inside the atmosphere) since 2016, using its mapping aurora infrared Junocam and Jovian (Jyram), respectively. These two instruments have shown that each of the eight cyclones moves towards the pole through a process called “beta drift”. The same process occurs to cyclones on Earth, and is the result of the Coriolis force that interacts with the rotating wind pattern that belongs to each cyclone. However, on earth, cyclones never approach the poles. This is because the more they approach cold and dry posts, the more they run out of warm and humid air that gives them energy. In Jupiter, atmospheric dynamics is different, and this is not a problem. But once in the post, Jupiter’s cyclones begin to run into each other.
“These competing forces result in the cyclones to bounce together in a way that reminds the springs in a mechanical system,” said Yohai Kaspi, Juno co-gauges from the Weizmann Science Institute in Israel in Israel, in A. statement. “This interaction not only stabilizes the entire configuration, but also causes the cyclones to oscillate around their central positions, since they slowly derive west, in the direction of the clock needles, around the post.”
Meanwhile, far from Jupiter’s atmosphere, Juno has been making recurring flyers of the moon jovian more internal, Io – The most volcanic body of the Solar System.
Duration Juno’s Flyby de IO on December 27, 2024, the spacecraft detected what has turned out to be the More energetic volcanic eruption Once recorded in IO. When Juno returned on March 2, the volcano was still throwing, and is expected to be active in the next flyer of Juno, which takes place on May 6 at a distance of 55,300 miles (89,000 kilometers) of the IO surface.
But it is what is under the surface of Io that has excited Juno’s scientific team. When combining the microwave radiometer of the spacecraft (MWR) with Jiram, scientists could measure the underground temperature in IO, revealing the presence of underground magma flows.
“The Juno science team loves to combine very different data sets of very different instruments and see what we can learn,” said Shannon Brown or the NASA Jet Propulsion Laboratory. “When we incorporated MWR’s data with Jiram’s infrared images, we were surprised by what we saw: evidence of still warm magma that has not yet solidified below the cooling cooling in all the sinks, they were in which they were.
Juno has previously lever The existence of a great magma ocean under the IO surface that could feed the volcanoes, but the thesis cooling flows could explain how IO volcanoes explode. The science team estimates that approximately 10% of the moon’s subsoil has cooling flows, which tells us more about how heat is transported from the hot interior of IO to its surface, which allows the world to frequently result in the lava of the covers.
“IO volcanoes, lava fields and underground lava flows act as a car radiator, which efficiently move the heat from the interior to the surface, cooling in the emptiness of the space,” Brown said.
Juno’s last results were presented on April 29 at the General Assembly of the European Union of Geoscience in Vienna.
