{"id":6869,"date":"2021-12-20T15:11:07","date_gmt":"2021-12-20T15:11:07","guid":{"rendered":"https:\/\/www.africa-press.net\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2"},"modified":"2021-12-20T18:23:45","modified_gmt":"2021-12-20T18:23:45","slug":"some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2","title":{"rendered":"Some ‘Mysterious Ingredient’ May Be Causing Universe to Expand Faster Than it Should, Claims Study"},"content":{"rendered":"

Africa-Press – Rwanda. <\/strong><\/span>Ever since astronomer Edwin Hubble in 1929 observed the rate at which the Universe expands, called the Hubble constant H0, astronomers have been arguing about its actual value, as they realised that there was a discrepancy in this number between early universe observations and late universe observations.<\/p>\n

Some unknown \u201cingredient\u201d in cosmic space is forcing the Universe to expand faster than scientists’ models predict, according to the latest measurements with the Hubble Space Telescope.<\/p>\n

Evidence of this is not new in itself and has been accumulating over the years. However, in a new study, a team of researchers using the Hubble Space Telescope put together new data, appearing to substantiate the theory that the discrepancy, known as the “Hubble tension” after astronomer Edwin Hubble, is due to some mysterious fundamental ingredient yet undiscovered by astronomers.<\/p>\n

Researchers have based anticipation of the universe\u2019s rate of expansion \u2013 known as the Hubble constant \u2014 on two methods. Cosmologists using the Planck satellite to study the cosmic light from the \u201cearly\u201d universe, about 380,000 years after the big bang, have determined that constant to be about 67. This means the universe expands about 67 kilometres per second faster every 3.26 million light-years.<\/p>\n

However, astronomers observing stars and galaxies in the \u201clate\u201d universe, after stars were born and galaxies formed, have also measured the constant To be about 74. The most influential measurements of the late universe come from a project called Supernova H0 for the Equation of State (SH0ES).<\/p>\n

Thus, the two numbers disagree. Furthermore, research has pointed to some key cosmic ingredients, such as \u201cdark energy\u201d, which are believed to be driving the universe\u2019s accelerating expansion.<\/p>\n

\u201cThe universe seems to throw a lot of surprises at us, and that\u2019s a good thing, because it helps us learn,\u201d says Adam Riess, an astronomer at Johns Hopkins University and leader of the recent study, whose findings have been submitted to The Astrophysical Journal. If the discrepancy is not a statistical fluke, it means the universe is currently expanding faster than even dark energy can explain.<\/p>\n

To measure the distance between Earth and nearby galaxies, Riess\u2019s research group (Supernovae and H0 for the Equation of State of dark energy), used specific types of stars and 42 different stellar explosions, thus compiling a dataset more than double the next-biggest analysis of its kind. Another research team called the Pantheon+ collaboration complemented the SH0ES team\u2019s work by performing a meta-analysis of supernovae surveys, correcting for inconsistencies.<\/p>\n

The collaboration between SH0ES, which Adam Riess (Johns Hopkins University and the Space Telescope Science Institute) has led for nearly two decades, and Pantheon+ team generated what is hailed as the sharpest estimate yet for the Hubble constant: 73.04 kilometers per second per megaparsec, plus or minus 1.04.<\/p>\n

This is about 8 percent higher than the value from the Planck Observatory\u2019s measurements. The results of the team\u2019s work breach the \u201cfive-sigma threshold\u201d. This means there is only a 1 in 1 million chance that the discrepancy between late-time and early-time Universe measurements arise from systematics, thus confirming the so-called \u201cHubble tension\u201d is real.<\/p>\n

If the Hubble tension reflects physical reality, then scientists believe they will have to search for another item to add to the already-known list of the universe\u2019s fundamental ingredients.<\/p>\n

Further observations, such as with the help of ESA\u2019s Gaia satellite, which has been mapping the Milky Way since 2014, should be conducive to helping unravel the mystery. The upcoming launch of the James Webb Space Telescope should help astronomers double-check Hubble\u2019s measurements of certain stars.<\/p>\n

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

Africa-Press – Rwanda. Ever since astronomer Edwin Hubble in 1929 observed the rate at which the Universe expands, called the Hubble constant H0, astronomers have been arguing about its actual value, as they realised that there was a discrepancy in this number between early universe observations and late universe observations. Some unknown \u201cingredient\u201d in cosmic […]<\/p>\n","protected":false},"author":84,"featured_media":6868,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,28,31],"tags":[760,763,758],"class_list":["post-6869","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-homepage-english","category-miscellaneous","tag-africa-press","tag-africa-press-rwanda","tag-rwanda"],"yoast_head":"\nSome 'Mysterious Ingredient' May Be Causing Universe to Expand Faster Than it Should, Claims Study - Rwanda<\/title>\n<meta name=\"description\" content=\"Ever since astronomer Edwin Hubble in 1929 observed the rate at which the Universe expands, called the Hubble constant H ...\" \/>\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\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Some 'Mysterious Ingredient' May Be Causing Universe to Expand Faster Than it Should, Claims Study\" \/>\n<meta property=\"og:description\" content=\"Ever since astronomer Edwin Hubble in 1929 observed the rate at which the Universe expands, called the Hubble constant H ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2\" \/>\n<meta property=\"og:site_name\" content=\"Rwanda\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-20T15:11:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-12-20T18:23:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/rwanda\/sites\/23\/2021\/12\/img-61c0ca0ca953e.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\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\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2\"},\"author\":{\"name\":\"cfeditoren\",\"@id\":\"https:\/\/www.africa-press.net\/rwanda\/#\/schema\/person\/068c7ab4e9634ae78ec5d54ec46598bb\"},\"headline\":\"Some ‘Mysterious Ingredient’ May Be Causing Universe to Expand Faster Than it Should, Claims Study\",\"datePublished\":\"2021-12-20T15:11:07+00:00\",\"dateModified\":\"2021-12-20T18:23:45+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2\"},\"wordCount\":612,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/rwanda\/sites\/23\/2021\/12\/img-61c0ca0ca953e.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Rwanda\",\"Rwanda\"],\"articleSection\":[\"all news\",\"homepage-english\",\"Miscellaneous\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2\",\"url\":\"https:\/\/www.africa-press.net\/rwanda\/all-news\/some-mysterious-ingredient-may-be-causing-universe-to-expand-faster-than-it-should-claims-study-2\",\"name\":\"Some 'Mysterious Ingredient' May Be Causing Universe to Expand Faster Than it Should, Claims Study - 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