{"id":22739,"date":"2022-11-21T09:29:37","date_gmt":"2022-11-21T09:29:37","guid":{"rendered":"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory"},"modified":"2022-11-21T09:44:48","modified_gmt":"2022-11-21T09:44:48","slug":"winchcombe-meteorite-bolsters-earth-water-theory","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory","title":{"rendered":"Winchcombe meteorite bolsters Earth water theory"},"content":{"rendered":"

Africa-Press – Mauritius. <\/strong><\/span>A meteorite that crashed on the Gloucestershire town of Winchcombe last year contained water that was a near-perfect match for that on Earth. This bolsters the idea rocks from space brought key chemical components, including water, to the planet early in its history, billions of years ago.<\/p>\n

The meteorite is regarded as the most important recovered in the UK. Scientists publishing their first detailed analysis say it has yielded fascinating insights.<\/p>\n

More than 500g (1lb) of blackened debris was picked up from people\u2019s gardens and driveways and local fields, after a giant fireball lit up the night sky. The crumbly remains were carefully catalogued at London\u2019s Natural History Museum (NHM) and then loaned to teams across Europe to investigate.<\/p>\n

Water accounted for up to 11% of the meteorite\u2019s weight \u2013 and it contained a very similar ratio of different types of hydrogen atoms to the water on Earth.<\/p>\n

Some scientists say the young Earth was so hot it would have driven off much of its volatile content, including water. For the Earth to have so much today \u2013 70% of its surface is covered by ocean \u2013 suggests there must have been a later addition.<\/p>\n

Some say this could have come from a bombardment of icy comets \u2013 but their chemistry is not a great match. Carbonaceous chondrites, however \u2013 meteorites such as the Winchcombe one \u2013 most certainly are.<\/p>\n

And the fact it was recovered less than 12 hours after crashing means it had absorbed very little earthly water, or indeed any contaminants. \u201cAll other meteorites have been compromised in some way by the terrestrial environment,\u201d co-first author Dr Ashley King, from the NHM, told BBC News.<\/p>\n

\u201cBut Winchcombe is different because of the speed with which it was picked up.<\/p>\n

\u201cThis means when we measure it, we know the composition we\u2019re looking at takes us all the way back to the composition at the beginning of the Solar System, 4.6 billion years ago.<\/p>\n

\u201cBar fetching rock samples back from an asteroid with a spacecraft, we could not have a more pristine specimen.<\/p>\n

\u201d Precise trajectory Scientists examining the meteorite\u2019s carbon- and nitrogen-bearing organic compounds, including its amino acids, had a similarly clean picture.<\/p>\n

This is the type of chemistry that could have been a feedstock for biology to begin on the early Earth. The new analysis also confirms the meteorite\u2019s origin.<\/p>\n

Camera footage of the fireball has allowed researchers to work out a very precise trajectory. Calculating backwards, this indicates the meteorite came from the outer asteroid belt between Mars and Jupiter. Further investigations reveal it was knocked off the top few metres of a parent asteroid, presumably in some collision.<\/p>\n

It then took only 200,000 to 300,000 years to arrive on Earth, the number of particular atoms, such as neon, created in the meteorite material through the constant irradiation from high-speed space particles, or cosmic rays, reveals.<\/p>\n

\u201c0.2-0.3 million years sounds like quite a long time \u2013 but from a geological perspective, it\u2019s actually very quick,\u201d Dr Helena Bates, from the NHM, said.<\/p>\n

\u201cCarbonaceous chondrites have to get here quickly or they won\u2019t survive, because they\u2019re so crumbly, so friable, they\u2019ll just break apart.<\/p>\n

\u2018More secrets\u2019 The scientists first analysis, in this week\u2019s edition of the Science Advances journal, is just an overview of Winchcombe\u2019s properties.<\/p>\n

A dozen more papers on specialist topics are due to come out shortly in an issue of the Meteoritics & Planetary Science journal. And even they will not be the last word.<\/p>\n

\u201cResearchers will continue to work on this specimen for years to come, unlocking more secrets into the origins of our Solar System,\u201d co-first author Dr Luke Daly, from the University of Glasgow, said.<\/p>\n

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

Africa-Press – Mauritius. A meteorite that crashed on the Gloucestershire town of Winchcombe last year contained water that was a near-perfect match for that on Earth. This bolsters the idea rocks from space brought key chemical components, including water, to the planet early in its history, billions of years ago. The meteorite is regarded as […]<\/p>\n","protected":false},"author":84,"featured_media":22738,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,9],"tags":[233,245,845,241],"class_list":["post-22739","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-miscellaneous","tag-africa-press","tag-africa-press-mauritius","tag-earth","tag-mauritius"],"yoast_head":"\nWinchcombe meteorite bolsters Earth water theory - Mauritius<\/title>\n<meta name=\"description\" content=\"A meteorite that crashed on the Gloucestershire town of Winchcombe last year contained water that was a near-perfect mat ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Winchcombe meteorite bolsters Earth water theory\" \/>\n<meta property=\"og:description\" content=\"A meteorite that crashed on the Gloucestershire town of Winchcombe last year contained water that was a near-perfect mat ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory\" \/>\n<meta property=\"og:site_name\" content=\"Mauritius\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/AfricaPressTunisiaa\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-21T09:29:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-11-21T09:44:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/mauritius\/sites\/61\/2022\/11\/postQueueImg_1669010410.50.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"976\" \/>\n\t<meta property=\"og:image:height\" content=\"549\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditoren\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditoren\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory\"},\"author\":{\"name\":\"cfeditoren\",\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/#\/schema\/person\/068c7ab4e9634ae78ec5d54ec46598bb\"},\"headline\":\"Winchcombe meteorite bolsters Earth water theory\",\"datePublished\":\"2022-11-21T09:29:37+00:00\",\"dateModified\":\"2022-11-21T09:44:48+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory\"},\"wordCount\":630,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/mauritius\/sites\/61\/2022\/11\/postQueueImg_1669010410.50.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Mauritius\",\"Earth\",\"Mauritius\"],\"articleSection\":[\"all news\",\"miscellaneous\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory\",\"url\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/winchcombe-meteorite-bolsters-earth-water-theory\",\"name\":\"Winchcombe meteorite bolsters Earth water theory - 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