Is Jupiter's Great Red Spot becoming just a red dot?
NASA/ESA


The Great Red Spot on Jupiter might one day be the Average Red Spot; NASA says it's shrinking at a rate of 580 miles a year, the distance between Chicago and Washington, D.C.
For at least 400 years, NPR says, the anticyclonic vortex has been churning in the atmosphere of the planet, a gigantic storm that is big enough to engulf three Earths. As it gets smaller, the shape begins to shift as well, and by 2040 it could become circular. In 1979, the Great Red Spot was 14,500 miles across, in 1995 it was 13,020 miles across, and by 2009 it was down to 11,130 miles across. Now, it's 10,250 miles along the east-west axis.
NASA hypothesizes that the Great Red Spot is shrinking because "very small eddies are feeding into the storm." Amy Simon of NASA's Goddard Space Flight Center adds that the eddies are possibly "altering the internal dynamics and energy of the Great Red Spot." Simon and the rest of her team will study the eddies and the storm's internal dynamics to get to the bottom of "this yet unexplained shrinkage."
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
Catherine Garcia has worked as a senior writer at The Week since 2014. Her writing and reporting have appeared in Entertainment Weekly, The New York Times, Wirecutter, NBC News and "The Book of Jezebel," among others. She's a graduate of the University of Redlands and the Columbia University Graduate School of Journalism.
-
Democrats: How to rebuild a damaged brand
Feature Trump's approval rating is sinking, but so is the Democratic brand
-
Unraveling autism
Feature RFK Jr. has vowed to find the root cause of the 'autism epidemic' in months. Scientists have doubts.
-
'Two dolls': Can Trump sell Americans on austerity?
Feature Trump's tariffs may be threatening holiday shelves but they've handed Democrats a 'huge gift'
-
Sea lion proves animals can keep a beat
speed read A sea lion named Ronan beat a group of college students in a rhythmic dance-off, says new study
-
Humans heal much slower than other mammals
Speed Read Slower healing may have been an evolutionary trade-off when we shed fur for sweat glands
-
Novel 'bone collector' caterpillar wears its prey
Speed Read Hawaiian scientists discover a carnivorous caterpillar that decorates its shell with the body parts of dead insects
-
Scientists find hint of alien life on distant world
Speed Read NASA's James Webb Space Telescope has detected a possible signature of life on planet K2-18b
-
Katy Perry, Gayle King visit space on Bezos rocket
Speed Read Six well-known women went into lower orbit for 11 minutes
-
Scientists map miles of wiring in mouse brain
Speed Read Researchers have created the 'largest and most detailed wiring diagram of a mammalian brain to date,' said Nature
-
Scientists genetically revive extinct 'dire wolves'
Speed Read A 'de-extinction' company has revived the species made popular by HBO's 'Game of Thrones'
-
Dark energy may not doom the universe, data suggests
Speed Read The dark energy pushing the universe apart appears to be weakening