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The Great Red Spot on Jupiter continues to shrink, spectacular new images from the Hubble Space Telescope show. (See big versions of the pictures 

But, scientists say, the big storm, which has been swirling around the planet for hundreds of years, will likely put up a fight before it dissipates.

NASA and the European Space Agency report


Michael H. Wong, a researcher at the University of California Berkeley 

who co-wrote the paper analyzing some of these images

, says the wispy filament remains a mystery.


It's a cloud feature, Wong said, but it's a bit strange because it's almost a straight line when you would expect a feature inside an oval to be distorted.

So, what it's doing there and whether it will be there in the next set of photographs is a big question.

Scientists also noticed another feature: A rare wave structure near the equator that had not been spotted on the planet since Voyager 2 took a picture of it in the '70s.

, Hubble takes images on a yearly basis, giving scientists the "material they need to observe changes in the appearance of planets year after year."  Copyright 2019 NPR. To see more, visit https://www.npr.org.

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But, scientists say, the big storm, which has been swirling around the planet for hundreds of years, will likely put up a fight before it dissipates.


New Hubble images show Jupiter's great red spot is still shrinking

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