{"ok":true,"nota":{"id":"b7b46e0e359a391c","slug":"tres-galaxias-casi-sin-materia-oscura-sugieren-que-esa-materia-existe--b7b46e","titulo":"Tres galaxias casi sin materia oscura sugieren que esa materia existe, pero no de la forma que se imaginaba","resumen":"Un choque entre galaxias parece haberlas dejado sin buena parte de su materia oscura. Según el artículo, el hallazgo complica algunas teorías alternativas de la gravedad y aporta pistas sobre qué es y qué no es la materia oscura.","fuente":"quanta","fuenteNombre":"Quanta Magazine","color":"#1a7f8e","autor":"Robin George Andrews","url":"https://www.quantamagazine.org/triplet-of-ghostly-galaxies-hints-at-what-dark-matter-is-and-isnt-20261014/","imagen":"https://www.quantamagazine.org/wp-content/uploads/2026/10/Dark-Matter-Galaxies-cr.several-Default.webp","tema":"ciencia","subtemas":["materia oscura","galaxias","astrofísica","teorías de la gravedad","cosmología"],"entidades":["Quanta Magazine"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-14T14:04:05.000Z","indexTs":"2026-10-22T04:37:56.220Z","hash":"beb461014bd807d44d58f321b4eec92ef26e4c6cbcf9db4577963205684e9c69","tsa":{"time":"Oct 22 04:38:52 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"La materia oscura representa la mayor parte de la masa del universo y nadie sabe todavía qué es. Cada observación que descarta una explicación acerca el campo a una respuesta, aunque el avance sea lento. Para quien sigue la ciencia, es un recordatorio de que lo que se considera verdad sobre el cosmos puede cambiar con un solo dato incómodo.","quienFirma":"Quanta Magazine (sobre investigación astronómica sobre galaxias en colisión)","confianza":"divulgacion","consulta":null},"sello":{"hash":"beb461014bd807d44d58f321b4eec92ef26e4c6cbcf9db4577963205684e9c69","sello":"a97b58badf53c2c9f7fdf26caba6da2851b49d66a3d4a62f73bdcd37dfeda7d7","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6573763,"aleatorio":"ac1ab9766ef209323093f9521e7402b29370fa8f04af200361451518fae9c9b2","tiempo":"2026-10-22T04:38:30.000Z"},"nist":{"cadena":2,"pulso":1994087,"salida":"2CAE0B0247F8B2C1365D5848B4971A88B86F8096596AB659C9B46851CC37B71B43230BE62392778D57CA4D0DAE3440419DC67D4E27A84A89E3AA5B314736F2A3","tiempo":"2026-10-22T04:38:00.000Z"},"noAntes":"2026-10-22T04:38:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 22 04:38:52 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Triplet of ‘Ghostly’ Galaxies Hints at What Dark Matter Is — and Isn’t","descripcion":"A collision may have left these galaxies without dark matter. That spells trouble for alternative gravity theories. The post Triplet of ‘Ghostly’ Galaxies Hints at What Dark Matter Is — and Isn’t first appeared on Quanta Magazine","pubDate":"Wed, 14 Oct 2026 14:04:05 +0000","url":"https://www.quantamagazine.org/triplet-of-ghostly-galaxies-hints-at-what-dark-matter-is-and-isnt-20261014/"},"indexado":"2026-10-22T04:37:56.220Z"}}