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Across Jupiter\u2019s sunlit hemisphere, the newly assembled global map shows temperatures and charged gas arranged in consistent, repeating structures.<\/p>\n
Working through an extensive set of observations, Kate Roberts at Boston University (BU<\/a>) documented this pattern directly in the planet\u2019s upper atmosphere rather than inferring it from isolated snapshots.<\/p>\n Those observations confirm that temperatures fall smoothly from the poles toward the equator while bright and dim regions remain anchored in place.<\/p>\n This stability establishes a fixed baseline for interpreting how heat and charged particles move across the planet, setting up the mechanisms that drive those patterns.<\/p>\n Heat from poles<\/p>\n Across nearly every longitude, warmth thinned out from the poles to lower latitudes instead of forming random hot spots.<\/p>\n The team calculated a global mean near 833 Kelvin, about 1,040 degrees Fahrenheit, with equatorial values near 754 Kelvin, about 900 degrees Fahrenheit.<\/p>\n That pattern matches a planet heated mainly near its poles, where auroras<\/a> dump energy into thin gas before winds spread it.<\/p>\n Because the gradient barely changed from 2022 through 2025, and equatorial swings stayed under 10 percent, brief heating bursts now look uncommon.<\/p>\n Shapes that stayed<\/p>\n Another surprise came from oddly shaped dark lanes and bright knots first noticed more than 25 years ago.<\/p>\n The new maps showed those features had persisted for decades, which ruled out fleeting weather as their main cause.<\/p>\n Instead, the stubborn pattern tracked changes in charged<\/a>-particle density, not temperature, across places tied closely to Jupiter\u2019s magnetic field.<\/p>\n That result solves a long-running argument and points attention toward the forces moving charged material up and down.<\/p>\n Why the air glows<\/p>\n At the center of the maps sits H3+, a charged form of hydrogen that shines in infrared light.<\/p>\n That glow let researchers separate heat from density, which is why the old mysterious streaks finally made sense.<\/p>\n In that ionosphere, an electrically charged atmospheric layer, denser patches shine more strongly even when temperatures hardly move.<\/p>\n So the planet was not hiding a second temperature map<\/a> but revealing where charged gas had piled up or thinned out.<\/p>\n Winds steer ions<\/p>\n Planet-wide winds drive vertical motion that lifts or sinks charged gas along magnetic lines over wide regions.<\/p>\n Where upward drift carries plasma, electrically charged gas, away from the main H3+ layer, fewer electrons remain to destroy it.<\/p>\n Downward drift can push electrons into other heights instead, changing how much H3+ survives and altering the brightness pattern<\/a>.<\/p>\n That mechanism gives Jupiter a coherent upper atmosphere without requiring every bright patch to come from a new heat source.<\/p>\n Energy still leaks<\/p>\n Jupiter did not only trap heat in the maps but also dumped enormous energy back into space as infrared light.<\/p>\n From the mapped glow, the team estimated a noontime loss of 25.8 trillion watts across the planet.<\/p>\n More than half of that loss came from lower latitudes, not the bright auroral rings that usually steal attention.<\/p>\n That imbalance means any explanation for Jupiter\u2019s heat has to work well beyond the poles, across much calmer territory.<\/p>\n Storms and exceptions<\/p>\n One famous suspect, the Great Red Spot<\/a>, had already been tied to a hotspot high above the storm.<\/p>\n Six nights in the new dataset covered that region, yet deeper air muddied the signal and no clear lasting spike reappeared.<\/p>\n That leaves room for short-lived wave heating, but it no longer looks like the main explanation for global temperatures.<\/p>\n With a steadier baseline now in hand, future bursts from storms or the solar wind should stand out faster.<\/p>\n Beyond one planet<\/p>\n The result reaches past Jupiter because giant planets share the same basic problem of staying hotter than sunlight alone predicts.<\/p>\n A 2024 interview<\/a> with Roberts linked the Jupiter work to the wider problem of understanding other atmospheres.<\/p>\n \u201cUnderstanding upper atmospheres as a whole will help us understand Earth,\u201d said Roberts.<\/p>\n That perspective matters for worlds across the solar system and perhaps beyond it, where hot upper air shapes atmospheric escape.<\/p>\n What changes now<\/p>\n A stable map also changes how astronomers can study Jupiter because departures from the pattern now carry more information.<\/p>\n An unusual hot spot, a warped density band, or a sudden polar flare can be tested against this new benchmark.<\/p>\n \u201cThe goal of my research is to try and narrow down where all this extra energy is coming from,\u201d Roberts said.<\/p>\n That turns the map from a snapshot into a tool for catching the rare moments when Jupiter<\/a> breaks pattern.<\/p>\n The bigger picture<\/p>\n Jupiter\u2019s upper atmosphere now looks less like a jumble of surprises and more like a system with durable large-scale rules.<\/p>\n Those rules still leave room for brief shocks and local waves, but they finally give astronomers a clear framework for testing them.<\/p>\n The study is published in The Astrophysical Journal Letters<\/a>.<\/p>\n \u2014\u2013<\/p>\n Like what you read? Subscribe to our newsletter<\/a> for engaging articles, exclusive content, and the latest updates.<\/p>\n Check us out on EarthSnap<\/a>, a free app brought to you by Eric Ralls<\/a> and Earth.com.<\/p>\n \u2014\u2013<\/p>\n","protected":false},"excerpt":{"rendered":"Researchers have revealed that Jupiter\u2019s upper atmosphere maintains a stable, planet-wide structure that has persisted over multiple years.…\n","protected":false},"author":2,"featured_media":383143,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[61,60,82,247],"class_list":{"0":"post-383142","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-space","8":"tag-ie","9":"tag-ireland","10":"tag-science","11":"tag-space"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/383142","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=383142"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/383142\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/383143"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=383142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=383142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=383142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}