{"id":44070,"date":"2020-08-10T20:29:00","date_gmt":"2020-08-10T17:29:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/dwarf-planet-ceres-is-an-ocean-world-study\/"},"modified":"2020-08-10T20:29:00","modified_gmt":"2020-08-10T17:29:00","slug":"dwarf-planet-ceres-is-an-ocean-world-study","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/dwarf-planet-ceres-is-an-ocean-world-study\/","title":{"rendered":"#Dwarf planet Ceres is an ocean world: study"},"content":{"rendered":"

“#Dwarf planet Ceres is an ocean world: study<\/strong>”<\/p>\n

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\"Ceres<\/img>
\n Ceres is the largest object in the asteroid belt between Mars and Jupiter and has its own gravity
\n <\/figcaption><\/figure>\n<\/div>\n<\/div>\n

The dwarf planet Ceres\u2014long believed to be a barren space rock\u2014is an ocean world with reservoirs of sea water beneath its surface, the results of a major exploration mission showed Monday.<\/p>\n

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Ceres is the largest object in the asteroid belt between Mars and Jupiter and has its own gravity, enabling the NASA Dawn spacecraft to capture high-resolution images of its surface. <\/p>\n

Now a team of scientists from the United States and Europe have analysed images relayed from the orbiter, captured around 35 kilometres (22 miles) from the asteroid.
\nThey focused on the 20-million-year-old Occator crater and determined that there is an “extensive reservoir” of brine beneath its surface.
\nSeveral studies published Monday in the journals Nature Astronomy<\/i>, Nature Geoscience<\/a><\/i> and Nature Communications<\/i> also shed further light on the dwarf planet, which was discovered by Italian polymath Giuseppe Piazzi in 1801.
\nUsing infrared imaging, one team discovered the presence of the compound hydrohalite\u2014a material common in sea ice but which until now had never been observed off of Earth.
\nMaria Cristina De Sanctis, from Rome’s Istituto Nazionale di Astrofisica said hydrohalite was a clear sign Ceres’ used to have sea water.
\n“We can now say that Ceres is a sort of ocean world, as are some of Saturn’s and Jupiter’s moons,” she told AFP.
\nThe team said the salt deposits looked like they had built up within the last two million years\u2014the blink of an eye in space time.
\nThis suggests that the brine may still be ascending from the planet’s interior, something De Sanctis said could have profound implications in future studies.
\n“The material found on Ceres is extremely important in terms of astrobiology,” she said.
\n“We know that these minerals are all essential for the emergence of life.”
\nWriting in an accompanying comment article, Julie Castillo-Rogez, from the California Institute of Technology<\/a>’s Jet Propulsion Laboratory, said the discovery of hydrohalite was a “smoking gun” for ongoing water activity.
\n“That material is unstable on Ceres’ surface, and hence must have been emplaced very recently,” she said.
\nIn a separate paper, US-based researchers analysed images of the Occator crater and found that its mounds and hills may have formed when water ejected by the impact of a meteor froze on the surface.
\nThe authors said their findings showed that such water freezing processes “extend beyond Earth and Mars, and have been active on Ceres in the geologically recent past”.<\/p>\n

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More information:<\/strong>
\n C. A. Raymond et al. Impact-driven mobilization of deep crustal brines on dwarf planet Ceres, Nature Astronomy<\/i> (2020). DOI: 10.1038\/s41550-020-1168-2<\/p>\n

A. Nathues et al. Recent cryovolcanic activity at Occator crater on Ceres, Nature Astronomy<\/i> (2020). DOI: 10.1038\/s41550-020-1146-8
\nR. S. Park et al. Evidence of non-uniform crust of Ceres from Dawn’s high-resolution gravity data, Nature Astronomy<\/i> (2020). DOI: 10.1038\/s41550-020-1019-1
\nM. C. De Sanctis et al. Fresh emplacement of hydrated sodium chloride on Ceres from ascending salty fluids, Nature Astronomy<\/i> (2020). DOI: 10.1038\/s41550-020-1138-8
\nB. E. Schmidt et al. Post-impact cryo-hydrologic formation of small mounds and hills in Ceres’s Occator crater, Nature Geoscience<\/i> (2020). DOI: 10.1038\/s41561-020-0581-6<\/p><\/div>\n

\u00a9 2020 AFP<\/p>\n

\n Citation<\/strong>:
\n Dwarf planet Ceres is an ocean world: study (2020, August 10)
\n retrieved 10 August 2020
\n from https:\/\/phys.org\/news<\/a>\/2020-08-dwarf-planet-ceres-ocean-world.html<\/p>\n

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“#Dwarf planet Ceres is an ocean world: study” Ceres is the largest object in the asteroid belt between Mars and Jupiter and has its own gravity The dwarf planet Ceres\u2014long believed to be a barren space rock\u2014is an ocean world with reservoirs of sea water beneath its surface, the results of a major exploration mission…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[13426,51408],"class_list":["post-44070","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-astronomy-space-exploration","tag-dwarf-planet-ceres-is-an-ocean-world-study"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/44070","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=44070"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/44070\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=44070"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=44070"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=44070"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}