Yan emphasizes the bizarre nature of these galaxies by comparing them to a biological anomaly. \u201cIt seems that we\u2019ve identified a population of galaxies that we can\u2019t categorize, they are so odd,\u201d he said. \u201cOn the one hand they are extremely tiny and compact, like a point source, yet we do not see the characteristics of a quasar, an active supermassive black hole<\/a>, which is what most distant point sources are.\u201d This description highlights the fundamental mystery of these galaxies and sets them apart from more well-known cosmic objects. The findings<\/a>, which offer new insights into the distant universe, were presented at the 247th meeting of the American Astronomical Society in January 2026.<\/p>\n The Platypus Analogy: A Cosmic Rarity<\/p>\n The term \u201cplatypus\u201d is not just a catchy label but a deliberate reference to the bizarre characteristics these galaxies share with the platypus, a mammal famous for its unorthodox traits. Much like the platypus, these galaxies seem to defy any clear categorization in the field of astronomy. Yan elaborates on this analogy, explaining, <\/p>\n \u201cI looked at these characteristics and thought, this is like looking at a platypus. You think that these things should not exist together, but there it is right in front of you, and it\u2019s undeniable.\u201d<\/p>\n The combination of traits in these galaxies, compactness, faintness, and point-like appearance, has led scientists to question existing models of galaxy formation. By using the advanced imaging and spectral data from Webb, astronomers can see that these galaxies share an unexpected combination of features. Yan draws a parallel with the platypus\u2019s genetic makeup, saying, <\/p>\n \u201cLike spectra, the detailed genetic code of a platypus provides additional information that shows just how unusual the animal is, sharing genetic features with birds, reptiles, and mammals.\u201d <\/p>\n In the same way, Webb\u2019s data reveals that these galaxies combine traits never before observed in the same object, further deepening the mystery surrounding their origin and nature.<\/p>\n A Glimpse into the Early Universe<\/p>\n These nine unusual galaxies were detected in the Cosmic Evolution Early Release Science Survey (CEERS), a project that examines some of the earliest galaxies in the universe. The galaxies observed by Webb existed between 12 to 12.6 billion years ago, just a fraction of time after the Big Bang. Their discovery offers a rare glimpse into the universe\u2019s formative years, showing objects that may represent a stage of galaxy development previously hidden from view.<\/p>\n The galaxies in question are located so far away that their light has taken billions of years to reach us, and their compact nature challenges our understanding of what galaxies looked like in the early universe. With Webb\u2019s unparalleled resolving power, scientists can now explore these galaxies in great detail. However, as graduate student researcher Bangzheng Sun points out, <\/p>\n \u201cFrom the low-resolution spectra we have, we can\u2019t rule out the possibility that these nine objects are star-forming galaxies. That data fits. The strange thing in that case is that the galaxies are so tiny and compact, even though Webb has the resolving power to show us a lot of detail at this distance.\u201d<\/p>\n This suggests that Webb may be revealing galaxies in their early, nascent stages, before they grew into the larger, more familiar structures we see in the present-day universe. This could provide critical insights into how galaxies formed and evolved in the first few billion years after the Big Bang.<\/p>\n Unlocking the Mysteries of Galaxy Formation<\/p>\n The discovery raises intriguing questions about the origins of galaxies. According to Yan, the unusual characteristics of these galaxies suggest that they might be part of a previously unknown phase of galaxy formation. <\/p>\n \u201cI think this new research is presenting us with the question, how does the process of galaxy formation first begin? Can such small, building-block galaxies be formed in a quiet way, before chaotic mergers begin, as their point-like appearance suggests?\u201d Yan speculates.<\/p>\n Typically, galaxies are thought to grow through a process of merging, with smaller galaxies combining to form larger ones. However, these \u201cplatypus\u201d galaxies appear to be so small and isolated that they may represent a more peaceful early stage of galaxy evolution, one that challenges the idea of violent mergers. If this hypothesis holds, it could change the way scientists think about galaxy formation in the very early universe.<\/p>\n","protected":false},"excerpt":{"rendered":"Astronomers utilizing NASA\u2019s James Webb Space Telescope (JWST) have uncovered a new class of galaxies that defy traditional…\n","protected":false},"author":2,"featured_media":223557,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[111,139,69,147,392],"class_list":["post-223556","post","type-post","status-publish","format-standard","has-post-thumbnail","category-space","tag-new-zealand","tag-newzealand","tag-nz","tag-science","tag-space"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/223556","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/comments?post=223556"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/223556\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media\/223557"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media?parent=223556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/categories?post=223556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/tags?post=223556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"Stsci](\"https:\/\/www.newsbeep.com\/nz\/wp-content\/uploads\/2026\/01\/STScI-01KCKWJ25H8S76JAPDHDPM3NWR-1.jpg.webp.webp\")
This graphic illustrates the pronounced narrow peak of the spectra that caught researchers\u2019 attention in a small sample of galaxies, represented here by galaxy CEERS 4233-42232. Typically, distant point-like light sources are quasars, but quasar spectra have a much broader shape.
Illustration: NASA, ESA, CSA, Joseph Olmsted (STScI)<\/p>\n![\"Stsci](\"https:\/\/www.newsbeep.com\/nz\/wp-content\/uploads\/2026\/01\/STScI-01KCPGT5K0TSVBND1D0DJ4PAAY.png.webp.webp\")
Four of the nine galaxies in the newly identified \u201cplatypus\u201d sample were discovered in NASA\u2019s James Webb Space Telescope\u2019s Cosmic Evolution Early Release Science Survey (CEERS). One key feature that makes them distinct is their point-like appearance, even to a telescope that can capture as much detail as Webb.
Image: NASA, ESA, CSA, Steve Finkelstein (UT Austin); Image Processing: Alyssa Pagan (STScI)<\/p>\n