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#Paranal

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:rss: Hacker News

Oxygen discovered in most distant known galaxy
eso.org/public/news/eso2507/
#ycombinator #ESO #eso_org #Astronomy #Astrophysics #Astronomie #Suedsternwarte #telescopes #detectors #comets #planets #stars #galaxies #nebulae #universe #NTT #VLT #VLTI #ALMA #ELT #La_Silla #Paranal #Garching #Chile

www.eso.orgOxygen discovered in most distant known galaxyTwo different teams of astronomers have detected oxygen in the most distant known galaxy, JADES-GS-z14-0. The discovery, reported in two separate studies, was made possible thanks to the Atacama Large Millimeter/submillimeter Array (ALMA), in which the European Southern Observatory (ESO) is a partner. This record-breaking detection is making astronomers rethink how quickly galaxies formed in the early Universe.
Public
RiffReporter

Bundespräsident #Steinmeier besucht diese Woche das #Paranal-Observatorium in #Chile – ein weltweit bedeutender Ort astronomischer Forschung. Doch nebenan soll nun ein Industriepark entstehen – mit schwerwiegenden Folgen für die #Forschung. Sophia Boddenberg berichtet: riffreporter.de/de/internation

A spectacular aerial view of the ESO Very Large Telescope (VLT) platform, atop Cerro Paranal, in the Chilean Atacama Desert. The VLT consists of an array of four giant 8.2-metre Unit Telescopes (UTs), that can observe together or individually, and four 1.8-metre Auxiliary Telescopes (ATs) dedicated to interferometry. UTs and ATs are visible in the picture. On the right side of the platform is the 2.6-metre VLT Survey Telescope (VST), while on the left edge the Control Building, where astronomers operate the telescopes during the night, is partially visible. The Paranal Observatory is located at 2600 metres altitude, in the Taltal district, some 120 km south of Antofagasta, in the II Region of Chile. In the background at the upper edge of the image is the Pacific Ocean, only 12 km west of the observatory and typically covered by clouds. This is due to the fact that the cold oceanic stream keeps the thermal inversion layer very low, guaranteeing exceptional conditions for ground-based astronomy.
RiffReporter · Konflikt in Chile: Wasserstoffproduktion versus astronomische ForschungBy Sophia Boddenberg
Public
RTN

#ESO:
"
Beobachtungen der ESO helfen, den Einschlag des Asteroiden 2024 YR4 fast vollständig auszuschließen
"
".. Nach den neuesten Beobachtungen ist die Wahrscheinlichkeit eines Einschlags auf nahezu null gesunken. .. Einschlagwahrscheinlichkeit bei etwa 0,001 % .."

eso.org/public/germany/news/es

25.2.2025

www.eso.orgBeobachtungen der ESO helfen, den Einschlag des Asteroiden 2024 YR4 fast vollständig auszuschließenNeue Beobachtungen von 2024 YR4 mit dem Very Large Telescope (VLT) der Europäischen Südsternwarte (ESO) und Beobachtungsstationen weltweit haben einen Einschlag des Asteroiden auf unserem Planeten praktisch ausgeschlossen. Der Asteroid wurde in den vergangenen Monaten genau beobachtet, da die Wahrscheinlichkeit eines Einschlags auf der Erde im Jahr 2032 auf etwa 3 % gestiegen war, die höchste Einschlagwahrscheinlichkeit, die jemals für einen größeren Asteroiden erreicht wurde. Nach den neuesten Beobachtungen ist die Wahrscheinlichkeit eines Einschlags auf nahezu null gesunken.
#2024YR4#AESAndes#AESCorporation
Public
Claudio C

Video explicativo del proyecto y la situación en instagram.com/reel/DGYvAsCR2m0

#SOCHIAS está haciendo colecta de firmas para apoyar el Término Anticipado del Proyecto. Te invito a mostrar tu apoyo firmando el formulario.

Formulario de firmas en docs.google.com/forms/d/e/1FAI

InstagramTeresa Paneque on Instagram: "Compartan, interctuen y mandenle mensajes a evaluacionambiental (no puedo etiquetarlos) y a su portal de noticias favorito 💜 . Movilizarlo a otro sector implica rehacer todo el análisis. de impacto y volver a presentar el proyecto, por eso debe ser cancelado, no es algo que se pueda resolver inmediatamente en esta iteración🙃 . Estuvimos semanas hablando del asteroide YR4, orgullosos de que se descubriera desde Chile justamente gracias a nuestros cielos pristinos y zonas protegidas para la investigación astronómica! . mas info con: @sochiascl @eso.chile @eundas @astronomiauchile y muchos otros astronomos e instituciones que estan hablando al respecto! . @min_ciencia @mmachile @gabrielboric @maisarojas @aisenetcheverry"66K likes, 2,016 comments - terepaneque on February 22, 2025: "Compartan, interctuen y mandenle mensajes a evaluacionambiental (no puedo etiquetarlos) y a su portal de noticias favorito 💜 . Movilizarlo a otro sector implica rehacer todo el análisis. de impacto y volver a presentar el proyecto, por eso debe ser cancelado, no es algo que se pueda resolver inmediatamente en esta iteración🙃 . Estuvimos semanas hablando del asteroide YR4, orgullosos de que se descubriera desde Chile justamente gracias a nuestros cielos pristinos y zonas protegidas para la investigación astronómica! . mas info con: @sochiascl @eso.chile @eundas @astronomiauchile y muchos otros astronomos e instituciones que estan hablando al respecto! . @min_ciencia @mmachile @gabrielboric @maisarojas @aisenetcheverry".
#astronomy#VLT#ALMA
Continued thread
Public
Claudio C

Video explicativo del proyecto y la situación en instagram.com/reel/DGYvAsCR2m0

#SOCHIAS está haciendo colecta de firmas para apoyar el Término Anticipado del Proyecto. Te invito a mostrar tu apoyo firmando el formulario.

Formulario de firmas en docs.google.com/forms/d/e/1FAI

InstagramTeresa Paneque on Instagram: "Compartan, interctuen y mandenle mensajes a evaluacionambiental (no puedo etiquetarlos) y a su portal de noticias favorito 💜 . Movilizarlo a otro sector implica rehacer todo el análisis. de impacto y volver a presentar el proyecto, por eso debe ser cancelado, no es algo que se pueda resolver inmediatamente en esta iteración🙃 . Estuvimos semanas hablando del asteroide YR4, orgullosos de que se descubriera desde Chile justamente gracias a nuestros cielos pristinos y zonas protegidas para la investigación astronómica! . mas info con: @sochiascl @eso.chile @eundas @astronomiauchile y muchos otros astronomos e instituciones que estan hablando al respecto! . @min_ciencia @mmachile @gabrielboric @maisarojas @aisenetcheverry"66K likes, 2,016 comments - terepaneque on February 22, 2025: "Compartan, interctuen y mandenle mensajes a evaluacionambiental (no puedo etiquetarlos) y a su portal de noticias favorito 💜 . Movilizarlo a otro sector implica rehacer todo el análisis. de impacto y volver a presentar el proyecto, por eso debe ser cancelado, no es algo que se pueda resolver inmediatamente en esta iteración🙃 . Estuvimos semanas hablando del asteroide YR4, orgullosos de que se descubriera desde Chile justamente gracias a nuestros cielos pristinos y zonas protegidas para la investigación astronómica! . mas info con: @sochiascl @eso.chile @eundas @astronomiauchile y muchos otros astronomos e instituciones que estan hablando al respecto! . @min_ciencia @mmachile @gabrielboric @maisarojas @aisenetcheverry".
#astronomy#VLT#ALMA
Replied in thread
Public
Spaceflight 🚀

Because of #Chile’s 🇨🇱 near-ideal conditions for astronomy, it has become home to almost 40 percent 📊 of the world’s ground-based astronomy observing 🔭 capacity. Including current projects under construction 🏗️, within the next decade that number will increase 📈 to 60 percent. This makes any threat to the natural celestial purity of this remote region of Chile a threat to the present and future of ground-based astronomy as a whole scientificamerican.com/article

A webcam image of the construction site of ESO’s Extremely Large Telescope at Cerro Armazones, in Chile's Atacama Desert. Behind the steel structure of the partially built telescope, the starry sky is dominated by the core of the Milky Way and the Large and Small Magellanic clouds
Scientific American · Europe’s Extremely Large Telescope Faces a New Dire ThreatBy Katherine Helen Laliotis
#LightPollution#Astronomy#ELT
Public
Raumfahrer.Net Neuigkeiten

Dunkelster & klarster Himmel der Welt durch industrielles Megaprojekt gefährdet
Am 24.12. reichte AES Andes, Tochter der US-Fa. AES Corp., Projekt für Industriekomplex ein, bedroht makellosen Himmel über Paranal-Observatorium in chilenischer Atacama-Wüste, dunkelster & klarster HImmel der Welt! Industrielles Megaprojekt soll 5-11 km von Teleskopen entfernt entstehen, Lichtverschmutzung würde Astronomie extrem beeinträchtigen. Pressemitteilung/Bild: #ESO. #Paranal
raumfahrer.net/der-dunkelste-u

Raumfahrer.net · Der dunkelste und klarste Himmel der Welt ist durch ein industrielles Megaprojekt gefährdet - Raumfahrer.netAm 24. Dezember reichte AES Andes, eine Tochtergesellschaft des US-amerikanischen Energieversorgers AES Corporation, ein Projekt für einen riesigen Industriekomplex zur Umweltverträglichkeitsprüfung ein. Dieser Komplex bedroht den makellosen Himmel über dem Paranal-Observatorium der ESO in der chilenischen Atacama-Wüste, dem dunkelsten und klarsten aller astronomischen Observatorien der Welt. Das industrielle Megaprojekt soll nur 5 bis 11 Kilometer […]
Public
:rss: Hacker News

Darkest and clearest skies at risk from industrial megaproject
eso.org/public/news/eso2501/
#ycombinator #ESO #eso_org #Astronomy #Astrophysics #Astronomie #Suedsternwarte #telescopes #detectors #comets #planets #stars #galaxies #nebulae #universe #NTT #VLT #VLTI #ALMA #ELT #La_Silla #Paranal #Garching #Chile

www.eso.orgWorld's darkest and clearest skies at risk from industrial megaprojectOn December 24th, AES Andes, a subsidiary of the US power company AES Corporation, submitted a project for a massive industrial complex for environmental impact assessment. This complex threatens the pristine skies above ESO’s Paranal Observatory in Chile’s Atacama Desert, the darkest and clearest of any astronomical observatory in the world [1]. The industrial megaproject is planned to be located just 5 to 11 kilometres from telescopes at Paranal, which would cause irreparable damage to astronomical observations, in particular due to light pollution emitted throughout the project’s operational life. Relocating the complex would save one of Earth's last truly pristine dark skies.
Public
Mikko Tuomi

World's darkest and clearest skies at risk from industrial megaproject.

Since its inauguration in 1999, #Paranal Observatory has led to significant #astronomy breakthroughs, such as the first image of an #exoplanet and confirming the accelerated expansion of the #Universe.

Now Paranal is threatened by an industrial megaproject, planned to be located just 5 to 11 kilometres, which would cause irreparable damage to astronomical observations due to light pollution.

eso.org/public/news/eso2501/

www.eso.orgWorld's darkest and clearest skies at risk from industrial megaprojectOn December 24th, AES Andes, a subsidiary of the US power company AES Corporation, submitted a project for a massive industrial complex for environmental impact assessment. This complex threatens the pristine skies above ESO’s Paranal Observatory in Chile’s Atacama Desert, the darkest and clearest of any astronomical observatory in the world [1]. The industrial megaproject is planned to be located just 5 to 11 kilometres from telescopes at Paranal, which would cause irreparable damage to astronomical observations, in particular due to light pollution emitted throughout the project’s operational life. Relocating the complex would save one of Earth's last truly pristine dark skies.
Public
Dr. John Barentine FRAS

"The industrial #megaproject is planned to be located just 5 to 11 kilometres from telescopes at Paranal, which would cause irreparable damage to astronomical observations, in particular due to light pollution emitted throughout the project’s operational life. Relocating the complex would save one of Earth's last truly pristine dark skies." (via @esoastronomy)

eso.org/public/news/eso2501/

www.eso.orgWorld's darkest and clearest skies at risk from industrial megaprojectOn December 24th, AES Andes, a subsidiary of the US power company AES Corporation, submitted a project for a massive industrial complex for environmental impact assessment. This complex threatens the pristine skies above ESO’s Paranal Observatory in Chile’s Atacama Desert, the darkest and clearest of any astronomical observatory in the world [1]. The industrial megaproject is planned to be located just 5 to 11 kilometres from telescopes at Paranal, which would cause irreparable damage to astronomical observations, in particular due to light pollution emitted throughout the project’s operational life. Relocating the complex would save one of Earth's last truly pristine dark skies.
#Astronomy#Observatories#Paranal
Public
Jens Kube

Lasst mal schauen, ob wir noch irgendwo irgendwas kaputt machen können, um Geld zu verdienen. eso.org/public/germany/news/es von @esoastronomy #vlt #elt #paranal

www.eso.orgDer dunkelste und klarste Himmel der Welt ist durch ein industrielles Megaprojekt gefährdetAm 24. Dezember reichte AES Andes, eine Tochtergesellschaft des US-amerikanischen Energieversorgers AES Corporation, ein Projekt für einen riesigen Industriekomplex zur Umweltverträglichkeitsprüfung ein. Dieser Komplex bedroht den makellosen Himmel über dem Paranal-Observatorium der ESO in der chilenischen Atacama-Wüste, dem dunkelsten und klarsten aller astronomischen Observatorien der Welt [1]. Das industrielle Megaprojekt soll nur 5 bis 11 Kilometer von den Teleskopen in Paranal entfernt entstehen, was astronomische Beobachtungen unumkehrbar beeinträchtigen würde, insbesondere aufgrund der Lichtverschmutzung, die während der gesamten Betriebsdauer des Projekts entsteht. Durch die Verlegung des Komplexes könnte einer der letzten wirklich unberührten dunklen Himmel der Erde gerettet werden.
Public
RTN

#ESO:
"
..dunkelste + klarste Himmel d. Welt .. durch .. industrielles Megaprojekt gefährdet
"
"Am 24.12. reichte AES Andes, .. Tochtergesellschaft d. US-.. Energieversorgers AES Corporation, ein Projekt f. ..riesigen Industriekomplex zur Umweltverträglichkeitsprüfung ein. .. Komplex bedroht d. makellosen Himmel über d. Paranal-Observat..."

eso.org/public/germany/news/es

10.1.2025

www.eso.orgDer dunkelste und klarste Himmel der Welt ist durch ein industrielles Megaprojekt gefährdetAm 24. Dezember reichte AES Andes, eine Tochtergesellschaft des US-amerikanischen Energieversorgers AES Corporation, ein Projekt für einen riesigen Industriekomplex zur Umweltverträglichkeitsprüfung ein. Dieser Komplex bedroht den makellosen Himmel über dem Paranal-Observatorium der ESO in der chilenischen Atacama-Wüste, dem dunkelsten und klarsten aller astronomischen Observatorien der Welt [1]. Das industrielle Megaprojekt soll nur 5 bis 11 Kilometer von den Teleskopen in Paranal entfernt entstehen, was astronomische Beobachtungen unumkehrbar beeinträchtigen würde, insbesondere aufgrund der Lichtverschmutzung, die während der gesamten Betriebsdauer des Projekts entsteht. Durch die Verlegung des Komplexes könnte einer der letzten wirklich unberührten dunklen Himmel der Erde gerettet werden.
#AES#AESAndes#AESCorporation
Public *
Chuck Darwin

First segments of the world's largest telescope mirror shipped to Chile

The construction of the European Southern Observatory’s Extremely Large Telescope (ESO's ELT) has reached an important milestone with the delivery to ESO and shipment to Chile of the first 18 segments of the telescope’s main mirror (M1).

Once they arrive in Chile, the segments will be transported to the ELT Technical Facility, at ESO’s Paranal Observatory in the country’s Atacama Desert, where they will be coated in preparation for their future installation on the telescope main structure.

Unable to be physically made in one piece, M1 will consist of 798 individual segments arranged in a large hexagonal pattern, with an additional 133 being produced to facilitate the recoating of segments.

With a diameter of more than 39 metres, it will be the largest telescope mirror in the world.

The final stage in the production process of M1 segments — polishing — was carried out by world-leading optical systems manufacturer Safran Reosc near Poitiers, central France, at a building completely refurbished to work on this delicate task.

As part of the process, Safran Reosc developed new automation workflows and measurement techniques to ensure that the polishing met the high standards required for ESO's ELT.

The surface irregularities of the mirror are less than 10 nanometres (less than one thousandth of the width of a human hair).

To reach this level of performance, Safran Reosc used a technique called ion-beam figuring, in which a beam of ions sweeps the mirror surface and removes irregularities atom by atom

eso.org/public/news/eso2319/

www.eso.orgFirst segments of the world's largest telescope mirror shipped to ChileThe construction of the European Southern Observatory’s Extremely Large Telescope (ESO's ELT) has reached an important milestone with the delivery to ESO and shipment to Chile of the first 18 segments of the telescope’s main mirror (M1). Once they arrive in Chile, the segments will be transported to the ELT Technical Facility, at ESO’s Paranal Observatory in the country’s Atacama Desert, where they will be coated in preparation for their future installation on the telescope main structure. Unable to be physically made in one piece, M1 will consist of 798 individual segments arranged in a large hexagonal pattern, with an additional 133 being produced to facilitate the recoating of segments. With a diameter of more than 39 metres, it will be the largest telescope mirror in the world.
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