Ciencia-Física
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Ciencia-Física
Recopilación sobre ciencia
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Podcast CB SyR 456: SETI, paleoclima y encuentros estelares, la tensión de la constante de Hubble, genética de los gatos Manx y Starship de SpaceX

Podcast CB SyR 456: SETI, paleoclima y encuentros estelares, la tensión de la constante de Hubble, genética de los gatos Manx y Starship de SpaceX | Ciencia-Física | Scoop.it
Te recomiendo disfrutar del episodio 456 del podcast Coffee Break: Señal y Ruido [Acast A, Acast B; iVoox A, iVoox B; iTunes A y iTunes B], titulado “Ep456: Señales; Encuentros Estelares; Tensión Cosmológica; Gatos; Starship», 21 mar 2024.
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Adiós a Kardashov

Adiós a Kardashov | Ciencia-Física | Scoop.it
Para tratar con la posibilidad de que haya civilizaciones extraterrestres enormemente avanzadas, el astrofísico soviético N. S.Kardashev ha propuesto una distinción en términos de la energía disponible para una …...
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La intrigante señal extraterrestre que probablemente no sea ninguna de las tres cosas

La intrigante señal extraterrestre que probablemente no sea ninguna de las tres cosas | Ciencia-Física | Scoop.it
Anda haciendo las rondas una noticia sobre la detección de una posible señal alienígena desde la estrella conocida como HD 16459 po
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Have We Detected an Alien Signal? It's Highly Doubtful

Have We Detected an Alien Signal? It's Highly Doubtful | Ciencia-Física | Scoop.it
Based on breathless news reports from many prominent media outlets that should know better, this week’s biggest non-story in science is the discovery of a possible radio signal from talkative aliens elsewhere in the Milky Way. I’m here to tell you, alas, that anyone hoping for this to be the moment of First Contact with another galactic civilization is very likely to be disappointed.
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NASA: The Next 10 Years --"The Race is On to Discover If Life is Ubiquitous Throughout Our Galaxy and Beyond" (2015 Most Popular)

NASA: The Next 10 Years --"The Race is On to Discover If Life is Ubiquitous Throughout Our Galaxy and Beyond" (2015 Most Popular) | Ciencia-Física | Scoop.it
Nearly 14 billion years ago, our universe was born from a swirling quantum soup, in a spectacular and dynamic event known as the \big bang." After several hundred million years, the first stars lit up the cosmos, and many hundreds of millions of years later, the remnants of countless stellar explosions coalesced into the first planetary systems. Somehow, through a process still not understood, the laws of physics guiding the unfolding of our universe gave rise to self-replicating organisms - life. Yet more perplexing, this life eventually evolved a capacity to know its universe, to study it, and to question its own existence. Did this happen many times? If it did, how? If it didn't, why?
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“6EQUJ5" --The Signal from Cosmic Depths That Might Have Changed Human Civilization (Best of 2014)

“6EQUJ5" --The Signal from Cosmic Depths That Might Have Changed Human Civilization (Best of 2014) | Ciencia-Física | Scoop.it
 
 
 
August 15, 1977: the night before Elvis Presley died, at 11:16 p.m.
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"Detecting Alien Planet Particles Smaller than a Human Hair" --New SETI Breakthrough

"Detecting Alien Planet Particles Smaller than a Human Hair" --New SETI Breakthrough | Ciencia-Física | Scoop.it
 
 
 
It may sound like science fiction, but astronomers have worked out a scheme that will allow them to detect and measure particles ten times smaller than the width of a human hair, even at many light-years distance.
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"Alien Electromagnetic Signals Will Be Discovered by 2040" --SETI's Chief Astronomer

"Alien Electromagnetic Signals Will Be Discovered by 2040" --SETI's Chief Astronomer | Ciencia-Física | Scoop.it
 
          
"Astronomers will have scanned enough star systems by 2040 that we'll have discovered alien-produced electromagnetic signals," said Seth Shostak of the SETI (Search for Extraterrestrial Intelligence) Institute in Mountain View, Calif.
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Podcast CB SyR 271: Especial SETI, con entrevista a Jill Tarter

Podcast CB SyR 271: Especial SETI, con entrevista a Jill Tarter | Ciencia-Física | Scoop.it
He participado en el episodio 271 del podcast Coffee Break: Señal y Ruido [iVoox, iTunes], titulado “Ep271: Especial SETI; Entrevista Jill Tarter”, 11 jun 2020.«La tertulia semanal en la que repasamos las últimas noticias …...
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Resuelven el misterio de la Señal Wow! 40 años después (y no, no fueron los extraterrestres)

Resuelven el misterio de la Señal Wow! 40 años después (y no, no fueron los extraterrestres) | Ciencia-Física | Scoop.it
Año 1977, se registra una extraña señal en el radiotelescopio de la Universidad de Ohio, una transmisión de radio en la Constelación de Sagitario tan potente que desde el SETI la describen como la Señal Wow!. Desde entonces, han surgido varias teorías. 40 años de un misterio que parece llegar a su fin.

Así lo recoge la investigación de dos años que acaba de ser revisada y aprobada por la Washington Academy of Sciences. Un estudio que ya avanzaba hace varios meses que aquella señal no tenía nada ver con extraterrestres, sino con cometas.

En el momento en el que se detectó la señal en 1977, el radiotelescopio Big Ear buscaba específicamente transmisiones que pudieran ser evidencias de civilizaciones extraterrestres.
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Astrofísica y Física: ¿Una señal de origen extraterrestre?

Astrofísica y Física: ¿Una señal de origen extraterrestre? | Ciencia-Física | Scoop.it
HD 164595 es un sistema solar unos mil millones de años más antiguo que el nuestro. Su estrella posee un tamaño y un brillo comparables a nuestro Sol. Ahora, los científicos, anuncian que este sistema es la probable fuente de una potente señal de radio detectada con el Radiotelescopio ruso RATAN-600, ubicado en Zelenchukskaya, al norte de las Montañas Cáucaso.
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Scientists Shift Search for Alien Technological Civilizations to Ancient Red-Dwarf Stars --"Twice Age of Earth"

Scientists Shift Search for Alien Technological Civilizations to Ancient Red-Dwarf Stars --"Twice Age of Earth" | Ciencia-Física | Scoop.it
“Red dwarfs – the dim bulbs of the cosmos – have received scant attention by SETI scientists in the past,” SETI Institute engineer Jon Richard said last week in a news release announcing the initiative. “That’s because researchers mad
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“6EQUJ5" --The Signal From Deep Space That Might Have Transformed Human Civilization (2015 Most Popular)

“6EQUJ5" --The Signal From Deep Space That Might Have Transformed Human Civilization (2015 Most Popular) | Ciencia-Física | Scoop.it
August 15, 1977: the night before Elvis Presley died, at 11:16 p.m. an Ohio radio telescope -a rectangular structure, larger than three football feilds- called the Big Ear recorded a single pulse of radiation that seemed to come from somewhere...
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The Cosmic Signal That Might Have Changed Human Civilization

The Cosmic Signal That Might Have Changed Human Civilization | Ciencia-Física | Scoop.it

 

August 15, 1977: the night before Elvis Presley died, at 11:16 p.m. an Ohio radio telescope -a rectangular structure, larger than three football feilds- called the Big Ear recorded a single pulse of radiation that seemed to come from somewhere in the constellation of Sagittarius at the 1420 MHz hydrogen line, the vibration frequency of hydrogen, the most common molecule in the universe -exactly the signal ET-hunters had been instructed to look out for. The signal was so strong that it pushed the Big Ear's recording device off the chart.


Three nights later, on August 18, astronomer Jerry Ehmansat at his kitchen table flipping through a thick computer-generated printout displaying a cryptic stream of blank spaces and black digits falling into regularly spaced columns. As Ehman looked carefully through this forest of information, he zoomed in on a an odd column that read, from top to bottom: “6EQUJ5.”


Ehman circled this group of alpha/numeric characters, and to the left, in the margin, wrote “Wow!” This small section of paper with its imperfectly printed characters, together with Ehman’s emphatic note, "represent what some people think remains the best evidence of a signal from the cosmic depths that was of artificial, purposeful, and intelligent origin," according to Caleb Scharf, director of the multidisciplinary Columbia Astrobiology Center at Columbia University.

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"Are We Prepared for ET Contact?" --Experts Question SETI's Strategy

"Are We Prepared for ET Contact?" --Experts Question SETI's Strategy | Ciencia-Física | Scoop.it
  The Search for ExtraTerrestrial Intelligence (SETI) project is an initiative that began in the 70s with funding from NASA, but that has evolved towards the collaboration of millions of Internet users for the processing of data from the Arecibo...
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