{"id":31813,"date":"2022-05-24T10:16:59","date_gmt":"2022-05-24T10:16:59","guid":{"rendered":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/?post_type=purple_issue&p=31813"},"modified":"2022-05-24T10:16:59","modified_gmt":"2022-05-24T10:16:59","slug":"plutos-ice-volcanoes-shaped-its-heart","status":"publish","type":"post","link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/2022\/05\/24\/plutos-ice-volcanoes-shaped-its-heart\/","title":{"rendered":"Pluto\u2019s ice volcanoes shaped its heart"},"content":{"rendered":"\n

Beneath the dwarf planet\u2019s surface, ice flows like lava<\/p>\n\n

\"\"
Astronomers have indicated areas, in blue, where cryovolcanism may have occured on Pluto<\/figcaption><\/figure><\/div>\n\n

The unique hills of Pluto\u2019s icy heart-shaped region were probably formed by cryovolcanism \u2013 when water and ice act like lava and rock.<\/p>\n\n

\u201cRather than erosion, cryovolcanic activity appears to have extruded large amounts of material onto Pluto\u2019s exterior and resurfaced an entire region of the hemisphere New Horizons saw up close,\u201d says Kelsi Singer from New Horizons, which flew past Pluto in 2015.<\/p>\n\n

The region in question is the bright plain called Sputnik Planitia. Close inspection of New Horizons images of the region show it is covered in huge domes up to 7km tall and 100km wide, which the study found could be created by repeated cryovolcanic eruptions of material with a toothpaste-like consistency.<\/p>\n\n

Few if any craters exist in the area, indicating it is geologically young. This raises the possibility that Pluto\u2019s interior structure retained heat into the relatively recent past, to make it possible for material to be deposited on the surface. http:\/\/pluto.jhuapl.edu\/<\/a><\/p>\n\n

<\/p>\n\n

SIMULATIONS; NASA\/JOHNS HOPKINS UNIVERSITY APPLIED PHYSICS LABORATORY\/SOUTHWEST RESEARCH INSTITUTE\/KELSI SINGER<\/p>\n","protected":false},"excerpt":{"rendered":"

Beneath the dwarf planet\u2019s surface, ice flows like lava<\/p>\n","protected":false},"author":24,"featured_media":31812,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ub_ctt_via":"","purple_page_number":"14","purple_custom_meta_purple_page_number":"14","purple_seq_number":"2","purple_custom_meta_purple_seq_number":"2","purple_source_article":"article_14-2.xml","purple_custom_meta_purple_source_article":"article_14-2.xml","purple_source_issue":"June-2022","purple_custom_meta_purple_source_issue":"June-2022","purple_external_id":"June-2022-14-2","purple_custom_meta_purple_external_id":"June-2022-14-2","purple_issue_code":"|0000086553||","purple_custom_meta_purple_issue_code":"|0000086553||","purple_android_product":"com.im.skyatnight.205","purple_custom_meta_purple_android_product":"com.im.skyatnight.205","purple_ios_product":"com.im.skyatnight.205","purple_custom_meta_purple_ios_product":"com.im.skyatnight.205","purple_web_product":"","purple_custom_meta_purple_web_product":"","purple_publication_id":"075fab74-0a21-4201-866a-899d6c41c40c","purple_migrated":"","kt_blocks_editor_width":""},"categories":[19],"tags":[14],"featured_image_src":"https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2022\/05\/55fe499c-cc78-404b-94fe-8120b7d3a953.jpg","author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/author\/importmanagerhubsprylab-com\/"},"acf":{"readingTimeMinutes":"< 1","apple_news_title":""},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2022\/05\/55fe499c-cc78-404b-94fe-8120b7d3a953.jpg",768,957,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2022\/05\/55fe499c-cc78-404b-94fe-8120b7d3a953-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2022\/05\/55fe499c-cc78-404b-94fe-8120b7d3a953-241x300.jpg",241,300,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2022\/05\/55fe499c-cc78-404b-94fe-8120b7d3a953.jpg",768,957,false],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2022\/05\/55fe499c-cc78-404b-94fe-8120b7d3a953.jpg",768,957,false],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2022\/05\/55fe499c-cc78-404b-94fe-8120b7d3a953.jpg",768,957,false],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/77\/2022\/05\/55fe499c-cc78-404b-94fe-8120b7d3a953.jpg",768,957,false]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"Beneath the dwarf planet\u2019s surface, ice flows like lava","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts\/31813"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/comments?post=31813"}],"version-history":[{"count":3,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts\/31813\/revisions"}],"predecessor-version":[{"id":32503,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/posts\/31813\/revisions\/32503"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/media\/31812"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/media?parent=31813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/categories?post=31813"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/wp-json\/wp\/v2\/tags?post=31813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}