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AlcorNews❄️🔭 JWST confirme que la brume bleutée de Pluton agit comme un climatiseur spatial : elle refroidit l’atmosphère en absorbant la lumière le jour et en émettant la nuit. Un climat unique dans le système solaire ! 🌌🪐<a href="https://sciencepost.fr/pluton-cache-un-secret-climatique-inattendu-le-telescope-james-webb-vient-de-confirmer-une-decouverte-renversante/" rel="nofollow noopener" translate="no" target="_blank">https://sciencepost.fr/pluton-cache-un-secret-climatique-inattendu-le-telescope-james-webb-vient-de-confirmer-une-decouverte-renversante/</a><a href="https://mastodon.social/tags/Pluton" class="mention hashtag" rel="nofollow noopener" target="_blank">#Pluton</a> <a href="https://mastodon.social/tags/JWST" class="mention hashtag" rel="nofollow noopener" target="_blank">#JWST</a> <a href="https://mastodon.social/tags/Astronomie" class="mention hashtag" rel="nofollow noopener" target="_blank">#Astronomie</a> <a href="https://mastodon.social/tags/ClimatSpatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimatSpatial</a> <a href="https://mastodon.social/tags/D%C3%A9couverte" class="mention hashtag" rel="nofollow noopener" target="_blank">#Découverte</a> <a href="https://mastodon.social/tags/Science" class="mention hashtag" rel="nofollow noopener" target="_blank">#Science</a>

Observatorio del IPAEl Observatorio Astronómico del IPA tiene el agrado de invitarles a esta charla magistral a cargo del astrónomo Lic. Julio A. Fernandez y organizada por los colegas profesores de Epistemología del IPA. A continuación el resumen de la actividadEn el marco del ciclo de clases abiertas de los cursos de Epistemología y Filosofía de la Educación, invitamos a participar de la actividad "El cielo y la memoria", a cargo del astrónomo y profesor Julio Ángel Fernández Alves.Julio Ángel Fernández es licenciado en Astronomía por la Facultad de Humanidades y Ciencias de la Universidad de la República. Realizó investigaciones en el Observatorio Astronómico de Madrid y en el Instituto Max-Planck de Aeronomía de Alemania, y fue profesor visitante en el Observatorio de Valongo de la Universidad Federal de Río de Janeiro. Fue decano de la Facultad de Ciencias de la Universidad de la República y es investigador nivel III del Sistema Nacional de Investigadores de Uruguay. En 2006, durante el congreso de la Unión Astronómica Internacional en Praga, propuso la nueva definición de planeta que dejó a Plutón fuera de esa categoría. En 2016, fue incorporado a la Academia Nacional de Ciencias de los Estados Unidos.Es autor del libro En Plutón y otras anécdotas. Historias mínimas de la humanidad contadas a través de los nombres de los planetas menores, donde recoge, entre otras, la historia del asteroide AnaDiego, nombrado en homenaje a Ana Teresa Diego, estudiante desaparecida durante la última dictadura argentina.La charla invita a reflexionar sobre el vínculo entre el cielo y la memoria.Fecha: 16 de mayo Hora: de 10 a 12 hs Lugar: Salón SUM del IPAOrganizan: Profs. Valentino Velázquez y María Piaser Apoya: Observatorio Astronómico del IPAContacto: sofvalentino.velazquez@docente.ceibal.edu.uy<a href="https://mastodon.uy/tags/asteroide" class="mention hashtag" rel="nofollow noopener" target="_blank">#asteroide</a> <a href="https://mastodon.uy/tags/anadiego" class="mention hashtag" rel="nofollow noopener" target="_blank">#anadiego</a> <a href="https://mastodon.uy/tags/pluton" class="mention hashtag" rel="nofollow noopener" target="_blank">#pluton</a> <a href="https://mastodon.uy/tags/astronomia" class="mention hashtag" rel="nofollow noopener" target="_blank">#astronomia</a> <a href="https://mastodon.uy/tags/memoria" class="mention hashtag" rel="nofollow noopener" target="_blank">#memoria</a> <a href="https://mastodon.uy/tags/epistemolog%C3%ADa" class="mention hashtag" rel="nofollow noopener" target="_blank">#epistemología</a> <a href="https://mastodon.uy/tags/ciencia" class="mention hashtag" rel="nofollow noopener" target="_blank">#ciencia</a> <a href="https://mastodon.uy/tags/educaci%C3%B3n" class="mention hashtag" rel="nofollow noopener" target="_blank">#educación</a> <a href="https://mastodon.uy/tags/ense%C3%B1anza" class="mention hashtag" rel="nofollow noopener" target="_blank">#enseñanza</a>

GeologistsCatToday <a href="https://mastodon.social/tags/GeologyWithCats" class="mention hashtag" rel="nofollow noopener" target="_blank">#GeologyWithCats</a>. We found during <a href="https://mastodon.social/tags/hedgewatch" class="mention hashtag" rel="nofollow noopener" target="_blank">#hedgewatch</a> many <a href="https://mastodon.social/tags/quartz" class="mention hashtag" rel="nofollow noopener" target="_blank">#quartz</a> veins at the <a href="https://mastodon.social/tags/Rosstrape" class="mention hashtag" rel="nofollow noopener" target="_blank">#Rosstrape</a>. They formed when <a href="https://mastodon.social/tags/silica" class="mention hashtag" rel="nofollow noopener" target="_blank">#silica</a> rich fluids circulated in <a href="https://mastodon.social/tags/fractures" class="mention hashtag" rel="nofollow noopener" target="_blank">#fractures</a> that formed during cooling of the Ramberg <a href="https://mastodon.social/tags/pluton" class="mention hashtag" rel="nofollow noopener" target="_blank">#pluton</a> & are now remnants of a <a href="https://mastodon.social/tags/geothermal" class="mention hashtag" rel="nofollow noopener" target="_blank">#geothermal</a> system. <a href="https://mastodon.social/tags/PawForScale" class="mention hashtag" rel="nofollow noopener" target="_blank">#PawForScale</a> <a href="https://mastodon.social/tags/granite" class="mention hashtag" rel="nofollow noopener" target="_blank">#granite</a> <a href="https://mastodon.social/tags/geology" class="mention hashtag" rel="nofollow noopener" target="_blank">#geology</a> <a href="https://mastodon.social/tags/geologie" class="mention hashtag" rel="nofollow noopener" target="_blank">#geologie</a> <a href="https://mastodon.social/tags/geolocation" class="mention hashtag" rel="nofollow noopener" target="_blank">#geolocation</a> <a href="https://mastodon.social/tags/landscape" class="mention hashtag" rel="nofollow noopener" target="_blank">#landscape</a> <a href="https://mastodon.social/tags/CatsOfMastodon" class="mention hashtag" rel="nofollow noopener" target="_blank">#CatsOfMastodon</a>

kīpuka2/ L’actualité scientifique du quatrième trimestre 2023. Une double page est consacrée à la surveillance des volcans français des <a href="https://social.sciences.re/tags/Antilles" class="mention hashtag" rel="nofollow noopener" target="_blank">#Antilles</a> (montagne Pelée et Soufrière), une autre à des études sur des volcans connectés au Kamtchatka et aux Galápagos… Enfin, une double page est dédiée au <a href="https://social.sciences.re/tags/volcanisme" class="mention hashtag" rel="nofollow noopener" target="_blank">#volcanisme</a> extraterrestre, avec la découverte d’un possible super(cryo)volcan sur <a href="https://social.sciences.re/tags/Pluton" class="mention hashtag" rel="nofollow noopener" target="_blank">#Pluton</a> et des images thermiques de l’activité sur <a href="https://social.sciences.re/tags/Io" class="mention hashtag" rel="nofollow noopener" target="_blank">#Io</a> prises par la sonde <a href="https://social.sciences.re/tags/Juno" class="mention hashtag" rel="nofollow noopener" target="_blank">#Juno</a> (ci-dessous, CC BY Davies et al. 2023).

DavidB 🍥<a href="https://www.nationalgeographic.fr/espace/astronomie-systeme-solaire-le-coeur-de-pluton-est-brise-depuis-des-milliards-dannees" rel="nofollow noopener" target="_blank">https://www.nationalgeographic.fr/espace/astronomie-systeme-solaire-le-coeur-de-pluton-est-brise-depuis-des-milliards-dannees</a> <a href="https://firefish.social/tags/Pluton" rel="nofollow noopener" target="_blank">#Pluton</a> <a href="https://firefish.social/tags/Astronomie" rel="nofollow noopener" target="_blank">#Astronomie</a> <a href="https://firefish.social/tags/Espace" rel="nofollow noopener" target="_blank">#Espace</a>

Chris WhiteWhere is Babel Rock?The <a href="https://sciencemastodon.com/tags/USGS" class="mention hashtag" rel="nofollow noopener" target="_blank">#USGS</a> <a href="https://sciencemastodon.com/tags/BlueHills" class="mention hashtag" rel="nofollow noopener" target="_blank">#BlueHills</a> <a href="https://sciencemastodon.com/tags/quad" class="mention hashtag" rel="nofollow noopener" target="_blank">#quad</a> <a href="https://sciencemastodon.com/tags/bedrock" class="mention hashtag" rel="nofollow noopener" target="_blank">#bedrock</a> map and a <a href="https://sciencemastodon.com/tags/Quincy" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quincy</a> <a href="https://sciencemastodon.com/tags/Massachusetts" class="mention hashtag" rel="nofollow noopener" target="_blank">#Massachusetts</a> <a href="https://sciencemastodon.com/tags/historical" class="mention hashtag" rel="nofollow noopener" target="_blank">#historical</a> <a href="https://sciencemastodon.com/tags/map" class="mention hashtag" rel="nofollow noopener" target="_blank">#map</a> show Babel Rock overlooks a pond from just north of a bend in <a href="https://sciencemastodon.com/tags/Wampatuck" class="mention hashtag" rel="nofollow noopener" target="_blank">#Wampatuck</a> Rd. I have been on that rock, and it's <a href="https://sciencemastodon.com/tags/diabase" class="mention hashtag" rel="nofollow noopener" target="_blank">#diabase</a>, a <a href="https://sciencemastodon.com/tags/mafic" class="mention hashtag" rel="nofollow noopener" target="_blank">#mafic</a> <a href="https://sciencemastodon.com/tags/intrusion" class="mention hashtag" rel="nofollow noopener" target="_blank">#intrusion</a> into the Quincy <a href="https://sciencemastodon.com/tags/pluton" class="mention hashtag" rel="nofollow noopener" target="_blank">#pluton</a>. But the USGS <a href="https://sciencemastodon.com/tags/topographic" class="mention hashtag" rel="nofollow noopener" target="_blank">#topographic</a> quad & derivatives e.g. <a href="https://sciencemastodon.com/tags/GoogleEarth" class="mention hashtag" rel="nofollow noopener" target="_blank">#GoogleEarth</a> show it adjacent to the <a href="https://sciencemastodon.com/tags/BunkerHill" class="mention hashtag" rel="nofollow noopener" target="_blank">#BunkerHill</a> <a href="https://sciencemastodon.com/tags/quarry" class="mention hashtag" rel="nofollow noopener" target="_blank">#quarry</a> (source of the <a href="https://sciencemastodon.com/tags/granite" class="mention hashtag" rel="nofollow noopener" target="_blank">#granite</a> for the monument in <a href="https://sciencemastodon.com/tags/Boston" class="mention hashtag" rel="nofollow noopener" target="_blank">#Boston</a>). Should a correction be proposed to USGS? Advice welcomed.

Chris WhiteWe walked around <a href="https://sciencemastodon.com/tags/Cohasset" class="mention hashtag" rel="nofollow noopener" target="_blank">#Cohasset</a>, <a href="https://sciencemastodon.com/tags/Massachusetts" class="mention hashtag" rel="nofollow noopener" target="_blank">#Massachusetts</a> <a href="https://sciencemastodon.com/tags/USA" class="mention hashtag" rel="nofollow noopener" target="_blank">#USA</a> in the unusually warm (50 F, 10 C) “winter” weather here in <a href="https://sciencemastodon.com/tags/NewEngland" class="mention hashtag" rel="nofollow noopener" target="_blank">#NewEngland</a>. This is an (absurdly) prosperous <a href="https://sciencemastodon.com/tags/coastal" class="mention hashtag" rel="nofollow noopener" target="_blank">#coastal</a> community just south of <a href="https://sciencemastodon.com/tags/Boston" class="mention hashtag" rel="nofollow noopener" target="_blank">#Boston</a>. The walk included lovely views across coves and marshes (including <a href="https://sciencemastodon.com/tags/invasive" class="mention hashtag" rel="nofollow noopener" target="_blank">#invasive</a> Phragmites australis and <a href="https://sciencemastodon.com/tags/peat" class="mention hashtag" rel="nofollow noopener" target="_blank">#peat</a> under <a href="https://sciencemastodon.com/tags/native" class="mention hashtag" rel="nofollow noopener" target="_blank">#native</a> <a href="https://sciencemastodon.com/tags/Spartina" class="mention hashtag" rel="nofollow noopener" target="_blank">#Spartina</a>), as well as nice exposures of the > 600 Ma <a href="https://sciencemastodon.com/tags/Dedham" class="mention hashtag" rel="nofollow noopener" target="_blank">#Dedham</a> <a href="https://sciencemastodon.com/tags/granite" class="mention hashtag" rel="nofollow noopener" target="_blank">#granite</a>, the <a href="https://sciencemastodon.com/tags/pluton" class="mention hashtag" rel="nofollow noopener" target="_blank">#pluton</a> coring most of the <a href="https://sciencemastodon.com/tags/Avalon" class="mention hashtag" rel="nofollow noopener" target="_blank">#Avalon</a> terrane in this area. <a href="https://sciencemastodon.com/tags/photo" class="mention hashtag" rel="nofollow noopener" target="_blank">#photo</a> <a href="https://sciencemastodon.com/tags/igneous" class="mention hashtag" rel="nofollow noopener" target="_blank">#igneous</a> <a href="https://sciencemastodon.com/tags/Proterozoic" class="mention hashtag" rel="nofollow noopener" target="_blank">#Proterozoic</a> <a href="https://sciencemastodon.com/tags/geology" class="mention hashtag" rel="nofollow noopener" target="_blank">#geology</a> <a href="https://sciencemastodon.com/tags/saltMarsh" class="mention hashtag" rel="nofollow noopener" target="_blank">#saltMarsh</a>

Jerry D. Harris 🦕👣Intrusive contact between the sedimentary, Eocene Claron Formation below and the quartz-monzonite Pine Valley Mountains laccolith above. The Pine Valley laccolith is the world's largest example of such a pluton. Around 21 million years ago, magma intruded within the Claron Formation at a depth of about 200 m, shallower than is typical for a laccolith, allowing the magma to spread far laterally and dome up higher than normal. <a href="https://sauropods.win/tags/geology" class="mention hashtag" rel="nofollow noopener" target="_blank">#geology</a> <a href="https://sauropods.win/tags/geoscience" class="mention hashtag" rel="nofollow noopener" target="_blank">#geoscience</a> <a href="https://sauropods.win/tags/igneous" class="mention hashtag" rel="nofollow noopener" target="_blank">#igneous</a> <a href="https://sauropods.win/tags/Utah" class="mention hashtag" rel="nofollow noopener" target="_blank">#Utah</a> <a href="https://sauropods.win/tags/pluton" class="mention hashtag" rel="nofollow noopener" target="_blank">#pluton</a> <a href="https://sauropods.win/tags/laccolith" class="mention hashtag" rel="nofollow noopener" target="_blank">#laccolith</a> <a href="https://sauropods.win/tags/naturalhistory" class="mention hashtag" rel="nofollow noopener" target="_blank">#naturalhistory</a>

Javier Ibáñez📣 Martes pasado por agua y, aunque hoy se ve poco en el cielo, toca un <a href="https://mastodon.world/tags/DatosYCuriosidades" class="mention hashtag" rel="nofollow noopener" target="_blank">#DatosYCuriosidades</a> mirando a los planetas.En este caso para desmentir una creencia, la de que <a href="https://mastodon.world/tags/Plut%C3%B3n" class="mention hashtag" rel="nofollow noopener" target="_blank">#Plutón</a> (<a href="https://mastodon.world/tags/Pluto" class="mention hashtag" rel="nofollow noopener" target="_blank">#Pluto</a> en inglés) fue nombrado en honor al perro de Mickey Mouse.[1/3]

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