{"id":3192,"date":"2026-03-13T19:37:00","date_gmt":"2026-03-13T18:37:00","guid":{"rendered":"https:\/\/projects.ift.uam-csic.es\/severo\/?p=3192"},"modified":"2026-03-13T19:37:00","modified_gmt":"2026-03-13T18:37:00","slug":"the-mystery-of-cosmic-acceleration","status":"publish","type":"post","link":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/2026\/03\/13\/the-mystery-of-cosmic-acceleration\/","title":{"rendered":"The Mystery of Cosmic Acceleration."},"content":{"rendered":"\n

DIFT Colloquium.<\/h2>\n\n\n\n
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David Weinberg (The Ohio State University, USA<\/strong>).<\/h3>\n\n\n\n

Abstrac<\/strong>t: <\/h4>\n\n\n\n

Cosmic acceleration is one of the most surprising cosmological discoveries
of the past century. Even the \u201csimplest\u201d explanations require new,
cosmologically dominant energy components with exotic physical properties.
Current and near-future experiments are seeking clues to the origin of
cosmic acceleration by measuring the history of expansion and structure
growth with sub-percent precision over a wide span of redshift. I will
review the observational methods that underpin these measurements
and assess the current state of play, with particular attention to recent
measurements from the Dark Energy Spectroscopic Instrument (DESI) which
suggest that the properties of dark energy are evolving at a startling rate.
I will discuss the prospects and challenges for the new generation of
experiments \u2014 DESI, the Euclid mission, the Vera Rubin Observatory,
and the Nancy Grace Roman Space Telescope \u2014 which aim to sharpen cosmological
measurements by a factor of ten.<\/p>\n\n\n\n

When<\/strong>: Wednesday, March 18th, 2026 \u2013 15:00h (CEST)
Location&Place<\/strong>: CFTMAT Auditorium<\/p>\n\n\n\n

After the talk, we will have a coffee gathering<\/strong>, providing an opportunity to continue the discussion and interact with the speaker in an informal setting.<\/p>\n\n\n\n

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Colloquium<\/a><\/div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

DIFT Colloquium. David Weinberg (The Ohio State University, USA). Abstract:  Cosmic acceleration is one of the most surprising cosmological discoveriesof the past century. Even the \u201csimplest\u201d explanations require new,cosmologically dominant energy components with exotic physical properties.Current and near-future experiments are seeking clues to the origin ofcosmic acceleration by measuring the history of expansion and structuregrowth… Read More »The Mystery of Cosmic Acceleration.<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":3193,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-3192","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-colloquium"],"_links":{"self":[{"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/posts\/3192","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/comments?post=3192"}],"version-history":[{"count":2,"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/posts\/3192\/revisions"}],"predecessor-version":[{"id":3195,"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/posts\/3192\/revisions\/3195"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/media\/3193"}],"wp:attachment":[{"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/media?parent=3192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/categories?post=3192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/projects.ift.uam-csic.es\/severo\/index.php\/wp-json\/wp\/v2\/tags?post=3192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}