Jovian Moons [ID: 1]

There are at least 63 jovian moons! The largest four moons, Io, Europa, Ganymede and Callisto, are called the Galilean satellites because they were discovered by Galileo. We do not get close to them because Juno is in a polar orbit, but occasionally the spacecraft is close enough for images to be worthwhile. For example at PJ17 we imaged a volcanic plume erupting from Io!


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  1. comment by Wuyeesun-93 on 2019-06-25 21:40 UT

    this more of a question then a comment,but is it possible that the volcanic plume eruption.would this effect earth in anyway.say like a solar flare would

  2. comment by Gamzatov-27 on 2019-06-01 07:34 UT

    Hi my name is vineet.I had developed an interest in astronomy in my 12th standard.At that time we had not so much sophisticated tools as are today to view and see jupitor.If we consider the time when gallileo was interested in astronomy we can get various answers for the quest.We humans do feel the effect of planetary motions and the solar system even when we are uneducated about these.As usual we had also learnt about the ancient scientists in our text books, but even today we are still completely unaware as to what prompted them to design telescopes and measuring instruments to actually lead to the todays research.We should be thankfull to them in this respect.Iam of the opinion that the various myths associated with universe have some logical base.We have to look from this angle also.Nothing is unimportant.Considering Jupitor, it impacts our thoughts as it is the biggest planet and the biggest planets also have more effects.What was in the past on Jupitor is still unknown ,but everyday we are getting answers and more qurious questions also.There are various theories evolving as precision and technology is improving and evolving.I think it will help us in the future.But we cannot neglect old thoughts and theories also.

  3. comment by Halaesus-32 on 2019-05-07 11:56 UT

    This looks cool