{"id":68112,"date":"2024-11-25T13:14:56","date_gmt":"2024-11-25T13:14:56","guid":{"rendered":"https:\/\/www.africa-press.net\/liberia\/all-news\/say-goodbye-to-retrograde-jupiters-in-heat-wave"},"modified":"2024-11-25T13:33:51","modified_gmt":"2024-11-25T13:33:51","slug":"say-goodbye-to-retrograde-jupiters-in-heat-wave","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/liberia\/all-news\/say-goodbye-to-retrograde-jupiters-in-heat-wave","title":{"rendered":"Say Goodbye to \u2018Retrograde,\u2019 Jupiter\u2019s in . . . Heat Wave?"},"content":{"rendered":"

Africa-Press – Liberia. <\/strong><\/span>The fourth-brightest object in our solar system, Jupiter is one of only five planets seen with the naked human eye \u2013 mostly due to its auroras, or particles interacting with gases in the atmosphere to create light. Recent findings suggest these auroras may be the key to understanding questions about why the planet is hotter than models predict.<\/p>\n

Information presented at the most recent Europlanet Science Congress revealed that Jupiter\u2019s auroras, which are permanent, could be providing the extra energy necessary for heating the planet\u2019s upper atmosphere.<\/p>\n

Scientists realized nearly 50 years ago that something was off about Jupiter\u2019s atmosphere. At roughly five times the distance from the sun than Earth is, it receives only 4% of the solar radiation that reaches Earth. Despite this, the temperature of its upper atmosphere is comparable to that of Earth\u2019s atmosphere.<\/b><\/p>\n

Astronomer James O\u2019Donoghue of the Japan Aerospace Exploration Agency (JAXA), along with his team, was able to produce \u201cthe first maps of Jupiter’s upper atmosphere capable of identifying the dominant heat sources.\u201d<\/p>\n

The maps, created at Keck Observatory using state-of-the-art telescopes, allowed scientists to get an accurate look at the way Jupiter\u2019s auroras delivered heating on a planet-wide scale.<\/p>\n

\u201cWe found that temperatures start very high within the aurora, as expected from previous work, but now we could observe that Jupiter\u2019s aurora, despite taking up less than 10% of the area of the planet, appears to be heating the whole thing,\u201d explained O\u2019Donoghue.<\/p>\n

According to the scientists, Jupiter\u2019s auroras, which form from an interaction between charged particles, magnetic fields, and molecules in the atmosphere \u2013 just like the \u201cnorthern lights \u201c on planet Earth \u2013 are permanent and generated by its moon, Io, which is the most volcanic object in the solar system.<\/p>\n

“These findings add to our knowledge of Jupiter’s upper-atmospheric weather and climate, and are a great help in trying to solve the ‘energy crisis’ problem that plagues research into the giant planets,” said O\u2019Donoghue.<\/p>\n

According to the research, while the scientists were collecting observations of Jupiter\u2019s auroras, a solar wind collided with the gas giant, enhancing the auroral heating and delivering a significant amount of additional heat to the atmosphere.<\/p>\n

“While the auroras continuously deliver heat to the rest of the planet, these heat wave ‘events’ represent an additional, significant energy source,” O’Donoghue explains.<\/p>\n

There are other planets that are hotter than they should be, including Neptune, Uranus, and Saturn, and while none of them have auroras in the same size range as Jupiter, this finding represents potential avenues for exploration in the future.<\/b><\/p>\n

The research started a few years ago in Leicester before moving on to Boston University and NASA, ultimately ending at JAXA.<\/p>\n

For More News And Analysis About Liberia<\/span> Follow Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Liberia. The fourth-brightest object in our solar system, Jupiter is one of only five planets seen with the naked human eye \u2013 mostly due to its auroras, or particles interacting with gases in the atmosphere to create light. Recent findings suggest these auroras may be the key to understanding questions about why the […]<\/p>\n","protected":false},"author":84,"featured_media":68111,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,9],"tags":[234],"class_list":["post-68112","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-miscellaneous","tag-liberia"],"yoast_head":"\nSay Goodbye to \u2018Retrograde,\u2019 Jupiter\u2019s in . . . 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