CURRENT AFFAIRS

2021

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
NASA has released the sound recorded by the Juno mission near which planet’s moon Ganymede?
A
Saturn
B
Tues
C
Mercury
D
Jupiter
Explanation: 

Detailed explanation-1: -The sounds were picked by Juno’s Waves instrument, which tunes into electric and magnetic radio waves produced in Jupiter’s magnetosphere. By India Today Web Desk: The Juno mission, orbiting Jupiter, has beamed back data from its flyby around the biggest moon in the Solar System, Ganymede.

Detailed explanation-2: -Ganymede has a “song” that is alternately silly, ethereal First heard during the Fall meeting of the 2021 American Geophysical Union, the sounds emitted by Ganymede were picked up by Juno as it swept a mere 645 miles over the surface of the Jovian moon.

Detailed explanation-3: -A flyby of Ganymede occurred on June 7, 2021, 17:35 UTC, coming within 1, 038 km (645 mi), the closest any spacecraft has come to the moon since Galileo in 2000. A flyby of Europa took place on September 29, 2022, at a distance of 352 km (219 mi).

Detailed explanation-4: -The squeaky soundbytes in the audio clip represent electric and magnetic radio waves emitted by Ganymede, according to a NASA statement describing the newly published data.

Detailed explanation-5: -Electrons spiraling in Jupiter’s magnetic field are thought to be the cause of the radio noise we hear. The decametric radio waves have frequencies between 10 and 40 MHz. These types of radio waves from Jupiter are never heard above 40 MHz.

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