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May 20, 2019: Around the world, amateur astronomers are monitoring a strange phenomenon on the verge of Jupiter’s Great Red Spot (GRS). The giant storm appears to be unraveling. “I haven’t seen this before in my 17-or-so years of imaging Jupiter,” reports veteran observer Anthony Wesley of Australia, who photographed a streamer of gas detaching itself from the GRS on May 19th: [photo above]
The Great Red Spot is the biggest storm in the solar system–an anticyclone wider than Earth with winds blowing 350 mph. Astronomers have been observing it for hundreds of years. In recent decades, the Great Red Spot has been shrinking. Once it was wide enough to swallow three Earths; now only one of our planet could fit inside the maelstrom. This has led some researchers to wonder if the GRS could break up or disappear within our lifetimes. Perhaps the streamers are part of this process.
Wesley describes how the streamers are behaving now: “Each streamer appears to disconnect from the Great Red Spot and dissipate. Then, after about a week, a new streamer forms and the process repeats. You have to be lucky to catch it happening. Jupiter spins on its axis every 10 hours and the GRS is not always visible. A joint effort between many amateurs is underway to get clear images of the process.”
originally posted by: Baddogma
Age is showing on all of us...
but it is likely Jupiter is relieved, as I cannot imagine the red spot went unremarked upon in planetary social gatherings.
Jupiter’s internal magnetic field undergoes changes over time, NASA’s Juno orbiter confirmed after recent science flybys of the giant planet.
The discovery is the first ever detection of internal magnetic field changes in a planet, known as secular variation, beyond Earth. According to NASA, Juno mission scientists arrived at their conclusion by studying 40 years of Jupiter data collected by several missions, including Pioneers 10 and 11, Voyager 1, Ulysses, and Juno.
originally posted by: TEOTWAWKIAIFF
a reply to: bobs_uruncle
But no, one of the earlier threads devolved into Uranus jokes, so lets stay on topic!
@stonerwilliam, I was wondering when we dropped the satellite into it. It could be the cause but the size of the planet vs the size of Galileo is too small. Well... unless they had some red mercury! lol!
eta: The sun has not only gotten whiter but it "feels" hotter (which is like trying to prove you love your mom but I will say it anyway!)
It could be like others have said, a solar system-wide event happening. We are just the frog in the pot getting hotter.
originally posted by: stonerwilliam
a reply to: TEOTWAWKIAIFF
The planet has been acting weird for years now since they-Nasa bombed it with the Galileo probe in the early 2000s
Jupiter's Great Red Spot is an ancient, hurricane-like storm that may have been raging for 340 years or more, based on early observations with telescopes. At three times the width of Earth, it is the largest storm in the solar system. It was recently joined by a similar, but smaller storm called Red Spot Junior.May 22, 2008