\u201cWhen the original DESI survey began, we had \u2018dark\u2019 tiles over many different parts of the sky, so we weren\u2019t as limited by conditions,\u201d Myers told Ars. \u201cBut for the final dark tile, we had to thread the needle more, which made it seem like \u2018weather\u2019 was more of a problem. A lot of the time we were waiting to complete the final dark tile from the original program; we\u2019d been observing plenty of \u2018bright\u2019 and \u2018backup\u2019 tiles, as well as even some tiles from newer dark programs, which span more of the sky.\u201d<\/p>\n
Gearing up for DESI-II<\/p>\n
DESI\u2019s operation has been extended until 2028 to get a deeper look at more distant and faint \u201cluminous red\u201d galaxies, as well as nearby dwarf galaxies and stellar streams. Plans are already underway for DESI-II, which will require a small instrument upgrade. As for further tests of the Lambda CDM model, future analysis will be able to incorporate observational data from the Vera Rubin Telescope\u2019s sky survey as well as the Euclid Space Telescope. \u201cWe\u2019re going to need a lot of datasets and mix them in different ways to try to figure out what the Universe is trying to tell us,\u201d said Leauthaud.<\/p>\n
The big question mark is whether there will be future funding for DESI and DESI-II, given the precarious state of science funding in the US. Honscheid acknowledged the uncertainty but is cautiously optimistic, in part because of the project\u2019s success to date, and because DESI-II\u2019s upgrade is a relatively small-ticket item.<\/p>\n
\u201cI\u2019m optimistic for DESI-II, but I\u2019m also gravely concerned more broadly by the funding landscape and the attack on science,\u201d said Leauthaud. \u201cEven though we may be lucky, I\u2019m still extremely concerned for my colleagues in astronomy who have lost funding, students whose careers have been jeopardized, postdocs who have had to leave. More broadly, beyond astronomy and astrophysics, I\u2019ve been extremely concerned about the impact on climate science and NOAA. We rely on weather services to help with our observations.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"\u201cWhen the original DESI survey began, we had \u2018dark\u2019 tiles over many different parts of the sky, so…\n","protected":false},"author":2,"featured_media":400060,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[61,60,82,247],"class_list":{"0":"post-400059","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-space","8":"tag-ie","9":"tag-ireland","10":"tag-science","11":"tag-space"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/400059","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=400059"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/400059\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/400060"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=400059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=400059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=400059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}