Cristóbal Sifón

@csifon.bsky.social

Astrophysicist. Dark matter, galaxies and clusters through optical/submm/other wavelengths.

28 April 1945, Benito Mussolini is executed by Italian partisans. This (long!) thread recounts the events surrounding the flight, capture & execution of Mussolini (Photo: last known photo of Mussolini alive, as he leaves Milan on the evening of 25 April 1945) [Thread] >> 1

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Gran experiencia esta semana haber participado de la inauguración del Telescopio Submilimétrico Fred Young (FYST) en el Observatorio CCAT en el Cerro Chajnantor a 5600 metros de altura!

Yo frente al Telescopio Submilimétrico Fred Young instalado en el Cerro ChajnantorYo mostranfo el altímetro del teléfono, que marca 5592,76 metros de altura

Esta columna de Matamala va al meollo del proyecto que 23 senadores de derecha de la coalición de Kast, votaron a favor y esperan avanzar para que sea ley: Liberar a 12 mil de los más peligrosos criminales, es solo un "daño colateral" para liberar a los psicopatas ya privilegiados de Punta Peuco:

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For comparison, every robotic mission NASA has ever sent in its history, from the dawn of the Space Age 65 years ago to today, from Mercury to Pluto and beyond, has cost less than $40B. I know which one has done more for humankind and which one should be dismantled.

Culture Crave 🍿@culturecrave.co · 8mo ago

Mark Zuckerberg’s gamble on the ‘Metaverse’ has cost Meta more than $77B The company now plans to cut spending on it and shift focus to AI wearables instead (via WSJ)

A Sharon Begley byline, almost 5 years after her death. Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written." Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating. 🧪🧬🧫

James Watson, dead at 97, was a scientific legend and a pariah among his peers

James Watson, the co-discoverer of the structure of DNA who died Thursday at 97, was a scientific legend and a pariah among his peers.

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Por enésima vez, astrónomo de Harvard: No hay evidencia de tecnologías extraterrestres y 3I/ATLAS no es tecnología avanzada. Estos sinsentidos generan un daño enorme: falsas expectativas y menor credibilidad. Avi Loeb solo daña al público y la comunidad astronómica www.instagram.com/reel/DMdr1A5...

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Journey with us to the star that exploded twice! 🚀 The remains of supernova SNR 0509-67.5 are all that is left of this star. Our VLT found out that it suffered a pair of explosive blasts, shedding new light on some of the most important explosions in the Universe. www.eso.org/public/news/... 🔭 🧪