'The Voyager 2 flyby of Uranus in 1986 revealed an unusually oblique and off-centred magnetic field,' the researchers wrote.
A flyby of Uranus in 1986 is where we gathered much of our knowledge about the distant ice giant, but new research has found that this may not have been a standard representation of the planet's environment.The Voyager 2 probe may have passed by Uranus just after an intense solar wind event, which would have created conditions usually only seen around 4 percent of the time, according to a new paper in the journal Nature Astronomy.
However, according to the research, Uranus' magnetosphere appears to have been unusually compressed by solar wind during the precise moments Voyager 2 was flying past, skewing our measurements of the planet's properties.What Voyager 2 found was that Uranus' magnetosphere was bizarrely asymmetrical, with unexpectedly intense electron belts and a surprising lack of plasma. Astronomers were confused, but assumed at the time that this was representative of the planet on a normal day.
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