{"id":123120,"date":"2026-09-06T11:50:02","date_gmt":"2026-09-06T06:20:02","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=123120"},"modified":"2026-09-06T13:58:17","modified_gmt":"2026-09-06T08:28:17","slug":"ganymede","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/ganymede\/","title":{"rendered":"Ganymede"},"content":{"rendered":"<h2><b>Ganymede Latest News<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Magnetic and auroral evidence points to a vast ocean beneath Ganymede, but surface salts do not yet prove a direct connection through its roughly 150-kilometre ice shell. <\/span><\/p>\n<h2><b>About Ganymede<\/b><\/h2>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It is the <\/span><b>largest of Jupiter\u2019s satellites and of all the satellites in the solar system. <\/b><span style=\"font-weight: 400;\">\u00a0\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It is the <\/span><b>only moon <\/b><span style=\"font-weight: 400;\">known to possess its <\/span><b>own magnetic field.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><b>Discovered by Galileo Galilei in 1610,<\/b><span style=\"font-weight: 400;\"> Ganymede&#8217;s name is derived from a figure in Roman mythology associated with the god Jupiter.\u00a0\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It has a <\/span><b>diameter <\/b><span style=\"font-weight: 400;\">of about 5,270 km, which makes it <\/span><b>larger than the planet Mercury.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It is situated about one million kilometers from Jupiter, exhibiting <\/span><b>synchronous rotation, <\/b><span style=\"font-weight: 400;\">which means it<\/span><b> always shows the same face to the planet.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Ganymede\u2019s <\/span><b>relatively low density<\/b><span style=\"font-weight: 400;\"> of 1.93 grams per cubic cm indicates that its composition is <\/span><b>roughly half rock and half water ice by mass.\u00a0\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Ganymede has a c<\/span><b>ore of metallic iron,<\/b><span style=\"font-weight: 400;\"> which is <\/span><b>followed by a layer of rock <\/b><span style=\"font-weight: 400;\">that is <\/span><b>topped off by a crust of mostly ice <\/b><span style=\"font-weight: 400;\">that is very thick.\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">There are also a <\/span><b>number of bumps on Ganymede&#8217;s surface<\/b><span style=\"font-weight: 400;\">, which may be rock formations.\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It is <\/span><b>believed <\/b><span style=\"font-weight: 400;\">that Ganymede has a <\/span><b>saltwater ocean below its surface.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">A<\/span><b> thin atmosphere surrounds <\/b><span style=\"font-weight: 400;\">Ganymede, <\/span><b>containing hydrogen <\/b><span style=\"font-weight: 400;\">and possibly other compounds like carbon dioxide.\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><b>Ongoing exploration,<\/b><span style=\"font-weight: 400;\"> including missions like the recently launched <\/span><b><a href=\"https:\/\/vajiramandravi.com\/current-affairs\/jupiter-icy-moons-explorer\/\" target=\"_blank\">Jupiter Icy Moons Explorer<\/a> (JUICE), aims to deepen our understanding of Ganymede&#8217;s geology<\/b><span style=\"font-weight: 400;\">, potential oceanic layers, and its role in the broader context of the solar system&#8217;s formation and evolution.<\/span><\/li>\n<\/ul>\n<p><b>News: <\/b><a href=\"https:\/\/spacedaily.com\/t-ganymede-ocean-150km-ice-surface-exchange\/\" target=\"_blank\" rel=\"nofollow noopener\"><b>SD<\/b><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ganymede is the largest of Jupiter\u2019s satellites and of all the satellites in the solar system. Read more about Ganymede, Latest News<\/p>\n","protected":false},"author":23,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[10056,21,22,23],"class_list":["post-123120","post","type-post","status-publish","format-standard","category-upsc-prelims-current-affairs","tag-ganymede","tag-prelims-pointers","tag-upsc-current-affairs","tag-upsc-prelims-current-affairs","no-featured-image-padding"],"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/123120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=123120"}],"version-history":[{"count":4,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/123120\/revisions"}],"predecessor-version":[{"id":123129,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/123120\/revisions\/123129"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=123120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=123120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=123120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}