Home » Ciência » Espaço e Cosmos » VAi??deo da Nasa mostra superfAi??cie ai???conturbadaai??? de JA?piter

VAi??deo da Nasa mostra superfAi??cie ai???conturbadaai??? de JA?piter

A Nasa leva vocA? para um tour pelo polo norte de JA?piter, um dos planetas mais misteriosos do Sistema Solar. Material foi coletado pela sonda Juno

SA?o Paulo ai??i??Ai??A missA?o Juno daAi??NasaAi??(a agA?ncia espacial americana) lanAi??ou imagens e uma animaAi??A?o em 3D que mostram o polo norte de JA?piter, um dosAi??planetasAi??mais misteriosos de nosso Sistema Solar. Spoiler: o local nA?o Ai?? nem um pouco tranquilo.

O polo norte de JA?piter, que tem 11 vezes o tamanho daAi??Terra, abriga um ciclone gigantesco rodeado por outros oito menores. Para vocA? ter ideia da dimensA?o, esses oito ciclones que circulam o maior tA?m entre 4.000 e 4.600 quilA?metros de diA?metro.

As imagens e informaAi??Ai??es foram coletadas pela sonda Juno, que estA? orbitando o planeta desde 2016. O vAi??deo foi feito usando diversas imagens feitas pela sonda. O material, assim como descobertas envolvendo a gravidade e o campo magnAi??tico do planeta, foi divulgado durante aAi??Assembleia Geral da UniA?o Europeia de GeociA?ncias, que acontece em Viena, na A?ustria.

Para se ter ideia de como Ai?? difAi??cil conseguir informaAi??Ai??es sobre o planeta, a Juno usou um instrumento capaz de olhar de 50 a 70 quilA?metros abaixo das agitadas nuvens que cobrem JA?piter. ai???As imagens ajudarA?o o time a entender as forAi??as trabalhando na animaAi??A?oai??i??um polo norte dominado por um ciclone central cercado por outros oito ciclones circumpolares com diA?metros entre 4.000 e 4.600 quilA?metrosai???, explica a Nasa.

ai???Antes da Juno, nA?s podAi??amos apenas supor como os polos de JA?piter seriamai???, diz Alberto Adriani, membro do time da Juno, em comunicado. ai???Agora, Juno voando sobre os polos a uma distA?ncia permite a coleta de imagens em infravermelho das condiAi??Ai??es climA?ticas do polo de JA?piter e seus ciclones massivos em uma resoluAi??A?o sem precedentes.ai???

Os novos dados ajudaram cientistas a entender melhor a gravidade e rotaAi??A?o de JA?piter.Ai??AstrA?nomosAi??descobriram que Ai?? medida que se vai mais fundo na superfAi??cie, o gA?s se forna uma espAi??cie de lAi??quido metA?lico com alta densidade. Esse material fira como se fosse um sA?lido.

ai???Neste ponto, o hidrogA?nio se torna condutivo o suficiente para ser arrastado em uma rotaAi??A?o quase uniforme pelo poderoso campo magnAi??tico do planetaai???, diz Tristan Guillot, outro cientista da missA?o.

Outro pesquisador,Ai??Jack Connerney, comentou sobre o campo magnAi??tico do planeta, que tambAi??m tem caracterAi??sticas surpreendentes.Ai??ai???Estamos descobrindo que o campo magnAi??tico de JA?piter nA?o se parece com nada imaginado anteriormente.ai???

O campo magnAi??tico tem irregularidades inesperadas, com regiAi??es mais intensas, alAi??m de contar com diferenAi??as considerA?veis entre os polos norte e sul. O prA?ximo passo deve ser compreender as causas das diferenAi??as, ainda misteriosas para os cientistas.

Assista abaixo Ai?? animaAi??A?o divulgada pela Nasa:

 

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