Singapore Science News API

{
    "totalArticles": 15542,
    "articles": [
        {
            "id": "48a8c5938a08d622edc7112e9ec2da18",
            "title": "Webb Identifies Supernova Progenitor Star in NGC 1637",
            "description": "Using the NASA/ESA/CSA James Webb Space Telescope, astronomers have for the first time identified the progenitor of a nearby supernova -- a red supergiant star cloaked in thick, dust-rich shrouds that made it invisible to previous observatories.",
            "content": "Using the NASA/ESA/CSA James Webb Space Telescope, astronomers have for the first time identified the progenitor of a nearby supernova — a red supergiant star cloaked in thick, dust-rich shrouds that made it invisible to previous observatories.\nThe s... [2564 chars]",
            "url": "https://www.sci.news/astronomy/webb-supernova-progenitor-star-ngc-1637-14576.html",
            "image": "https://cdn.sci.news/images/2026/02/image_14576-SN-2025pht.jpg",
            "publishedAt": "2026-02-23T22:35:34Z",
            "lang": "en",
            "source": {
                "id": "c74358087a9ef7a865a623801c9a631c",
                "name": "Sci.News",
                "url": "https://www.sci.news"
            }
        },
        {
            "id": "dd30af60518af939d39735e1827952d2",
            "title": "NASA Spaceline Current Awareness List #1,888 20 February 2026 (Space Life Science Research Results)",
            "description": "Welcome to Astrobiology.com",
            "content": "The abstract in PubMed or at the publisher’s site is linked when available and will open in a new window.\nPapers deriving from NASA support:\nAdkins AM, Boden AF, Singh N, Luyo ZNM, Britten RA, Wellman LL, Sanford LD.Effects of 15 cGy GCRsim space rad... [8611 chars]",
            "url": "https://astrobiology.com/2026/02/nasa-spaceline-current-awareness-list-1888-20-february-2026-space-life-science-research-results.html",
            "image": "https://astrobiology.com/wp-content/uploads/2025/02/spaceline28feb25-1.png",
            "publishedAt": "2026-02-23T18:10:28Z",
            "lang": "en",
            "source": {
                "id": "1ff5b422408f5ec9bc27a0260c24caee",
                "name": "astrobiology.com",
                "url": "https://astrobiology.com"
            }
        },
        {
            "id": "1a1f9d265354e750274ac58d8a1bc1ac",
            "title": "The dramatic transition of the extreme red supergiant WOH G64 to a yellow hypergiant",
            "description": "Red supergiants (RSGs) are cool, evolved massive stars in their final evolutionary stage before exploding as a supernova. However, the evolution and fate of the most luminous RSGs remain uncertain. Observational evidence for luminous warm, post-RSG objects and the apparent lack of luminous RSGs as supernova progenitors suggest a bluewards evolution. Since the 1980s, WOH G64 has been considered the most extreme RSG in the Large Magellanic Cloud, given its large obscuration, outstanding size, luminosity and mass-loss rate. Here we report a sudden, yet smooth change in its apparent nature. Time-series photometry and subsequent spectroscopy reveal an extreme transition in the optical spectral features. We conclude that WOH G64 is a rare, massive symbiotic binary system where the RSG component has transitioned to a yellow hypergiant. This drastic transformation can be explained either by the partial ejection of the pseudo-atmosphere during a common-envelope phase or the return to a quiescent state after an outstanding eruption exceeding 30 years in duration. WOH G64 offers an opportunity to witness stellar evolution in real time and assess the role of binarity on the final phases of massive stars and their resulting supernovae. Massive stars usually evolve gradually over millennia, but here one has been caught in the act. Extreme star WOH G64 shifted from red to yellow in just a year, prompting the question of whether this is due to intrinsic instability or interaction with a hidden companion.",
            "content": "Meynet, G. & Maeder, A. Stellar evolution with rotation. X. Wolf–Rayet star populations at solar metallicity. Astron. Astrophys. 404, 975–990 (2003).\nEkström, S. et al. Grids of stellar models with rotation. I. Models from 0.8 to 120 M⊙ at solar meta... [20130 chars]",
            "url": "https://www.nature.com/articles/s41550-026-02789-7?error=cookies_not_supported&code=f35a131c-a9b7-493a-9b00-9320cb2a9409",
            "image": "https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41550-026-02789-7/MediaObjects/41550_2026_2789_Fig1_HTML.png",
            "publishedAt": "2026-02-23T16:49:50Z",
            "lang": "en",
            "source": {
                "id": "7abf0df285fbe93cdccffcc7c4088737",
                "name": "Nature",
                "url": "https://www.nature.com"
            }
        }
    ]
}