By: April Carson
What makes Ganymede so unique?
The Ganymede moon, which is about the size of Mercury and has a core and mantle, is of great interest to scientists. This enormous moon is even larger than Mercury and contains a core as well as a mantle.
Researchers believe that beneath a thin layer of ice lies a huge liquid ocean, making it the most promising target for searching for extraterrestrial life in the Solar System. Ganymede also has its own magnetic field, which is unique among other satellites in the solar system.
Juno made its most recent pass over Ganymede on June 7, approaching the satellite for the first time in 17 years. At an altitude of 1,038 kilometers and an average speed of 67,000 kilometers per hour, the spacecraft flew over the moon's surface.
It collected data on Ganymede's magnetosphere (which is submerged in Jupiter's magnetosphere), it took amazing rare photos, and recorded the radiation from the satellite in the radio spectrum during its journey. As a result, NASA scientists transformed the vibrations into an audio track in order to make them audible.
Listening to the sounds of Ganymede
For more than simply pure enjoyment, data is translated into audio frequencies. In this manner, little elements may be brought to light that would otherwise have been missed. Solar system sounds had previously been recorded during planetary ventures and with probes like Voyager.
Around the station’s middle, a notable rise in frequency can be heard – a sign that it has moved to another part of the satellite's magnetosphere. A sharper increase in frequency may be heard near the end of the recording, which signifies that at that time, the station moved to another region of the satellite's magnetosphere.
What's new on Jupiter, aside from Ganymede's noises?
Of course, the primary objective of Juno's mission has been to study Jupiter and the findings in this field are always amazing. The most recent findings show that over the previous 5 years, Jupiter's magnetic field has fluctuated significantly.
The equatorial magnetic anomaly known as the Great Blue Spot is moving east at a rate of 4 centimeters each second compared to the rest of the planet's inner surface. It is expected that the Great Blue Spot will complete a full revolution in 350 years.
A new image of Jupiter's main dust ring was also sent to astronomers. It's made up of particles ejected by the planet Metis and Adrastea's satellites. "Juno" took the ring from the inside, with the stars serving as a backdrop, to capture part of "Perseus," which is visible through the lens. It's surprising that even at this distance, the constellations appear identical to those seen from any other location on Earth.
The latest extension of the mission
On July 4, 2016, Juno reached Jupiter's orbit. It will circle the planet for several more years and continue to transmit fresh pictures and data. The mission was extended for a second time earlier this year, and we anticipate another extension in 2025 unless any of the instruments or critical systems fail.
The orbit of Jupiter
Juno's elliptical orbit takes it within about 2,100 miles (3,400 kilometers) of Jupiter at its closest approach. There are some more details on the Juno orbits here.
"Juno communicates directly with Earth by orbiting the planet in a carefully planned science orbit," said Rick Nybakken, Juno project manager at NASA's Jet Propulsion Laboratory in Pasadena, California. "We changed the orbit to be closer to Jupiter, so that we can get more frequent updates on the status of the spacecraft and its instruments."
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About the Blogger:
April Carson is the daughter of Billy Carson. She received her bachelor's degree in Social Sciences from Jacksonville University, where she was also on the Women's Basketball team. She now has a successful clothing company that specializes in organic baby clothes and other items. Take a look at their most popular fall fashions on bossbabymav.com
To read more of April's blogs, check out her website! She publishes new blogs on a daily basis, including the most helpful mommy advice and baby care tips! Follow on IG @bossbabymav
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