Podcasts about cosmic evolution

Play Episode Listen Later Nov 23, 2022 1:29

On the cosmic evolution of AGN obscuration and the X-ray luminosity function: XMM-Newton and Chandra spectral analysis of the 31 3 deg ^2 Stripe 82X by Alessandro Peca et al. on Wednesday 23 November We present X-ray spectral analysis of XMM and Chandra observations in the 31.3 deg$^2$ Stripe-82X (S82X) field. Of the 6181 X-ray sources in this field, we analyze a sample of 2937 active galactic nuclei (AGN) with solid redshifts and sufficient counts determined by simulations. Our results show a population with median values of spectral index $Gamma=1.94_{-0.39}^{+0.31}$, column density log$,N_{mathrm{H}}/mathrm{cm}^{-2}=20.7_{-0.5}^{+1.2}$ and intrinsic, de-absorbed, 2-10 keV luminosity log$,L_{mathrm{X}}/mathrm{erg,s}^{-1}=44.0_{-1.0}^{+0.7}$, in the redshift range 0-4. We derive the intrinsic fraction of AGN that are obscured ($22leqmathrm{log},N_{mathrm{H}}/mathrm{cm}^{-2}43$. This work constrains the AGN obscuration and spectral shape of the still uncertain high-luminosity and high-redshift regimes (log$,L_{mathrm{X}}/mathrm{erg,s}^{-1}>45.5$, $z>3$), where the obscured AGN fraction rises to $64pm12%$. We report a luminosity and density evolution of the X-ray luminosity function, with obscured AGN dominating at all luminosities at $z>2$ and unobscured sources prevailing at log$,L_{mathrm{X}}/mathrm{erg,s}^{-1}>45$ at lower redshifts. Our results agree with evolutionary models in which the bulk of AGN activity is triggered by gas-rich environments and in a downsizing scenario. Also, the black hole accretion density (BHAD) is found to evolve similarly to the star formation rate density, confirming the co-evolution between AGN and host-galaxy, but suggesting different time scales in their growing history. The derived BHAD evolution shows that Compton-thick AGN contribute to the accretion history of AGN as much as all other AGN populations combined. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2210.08030v2

function compton stripe agn gamma x ray luminosity arxiv bhad cosmic evolution xmm newton spectral analysis xmm

On the cosmic evolution of AGN obscuration and the X-ray luminosity function: XMM-Newton and Chandra spectral analysis of the 31 3 deg ^2 Stripe 82X

Play Episode Listen Later Nov 22, 2022 1:16

On the cosmic evolution of AGN obscuration and the X-ray luminosity function: XMM-Newton and Chandra spectral analysis of the 31 3 deg ^2 Stripe 82X by Alessandro Peca et al. on Tuesday 22 November We present X-ray spectral analysis of XMM and Chandra observations in the 31.3 deg$^2$ Stripe-82X (S82X) field. Of the 6181 X-ray sources in this field, we analyze a sample of 2937 active galactic nuclei (AGN) with solid redshifts and sufficient counts determined by simulations. Our results show a population with median values of spectral index $Gamma=1.94_{-0.39}^{+0.31}$, column density log$,N_{mathrm{H}}/mathrm{cm}^{-2}=20.7_{-0.5}^{+1.2}$ and intrinsic, de-absorbed, 2-10 keV luminosity log$,L_{mathrm{X}}/mathrm{erg,s}^{-1}=44.0_{-1.0}^{+0.7}$, in the redshift range 0-4. We derive the intrinsic fraction of AGN that are obscured ($22leqmathrm{log},N_{mathrm{H}}/mathrm{cm}^{-2}43$. This work constrains the AGN obscuration and spectral shape of the still uncertain high-luminosity and high-redshift regimes (log$,L_{mathrm{X}}/mathrm{erg,s}^{-1}>45.5$, $z>3$), where the obscured AGN fraction rises to $64pm12%$. We report a luminosity and density evolution of the X-ray luminosity function, with obscured AGN dominating at all luminosities at $z>2$ and unobscured sources prevailing at log$,L_{mathrm{X}}/mathrm{erg,s}^{-1}>45$ at lower redshifts. Our results agree with evolutionary models in which the bulk of AGN activity is triggered by gas-rich environments and in a downsizing scenario. Also, the black hole accretion density (BHAD) is found to evolve similarly to the star formation rate density, confirming the co-evolution between AGN and host-galaxy, but suggesting different time scales in their growing history. The derived BHAD evolution shows that Compton-thick AGN contribute to the accretion history of AGN as much as all other AGN populations combined. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2210.08030v2

function compton stripe agn gamma x ray luminosity arxiv bhad cosmic evolution xmm newton spectral analysis xmm

On the cosmic evolution of AGN obscuration and the X-ray luminosity function: XMM-Newton and Chandra spectral analysis of the 31 3 deg ^2 Stripe 82X

Play Episode Listen Later Nov 22, 2022 1:20

On the cosmic evolution of AGN obscuration and the X-ray luminosity function: XMM-Newton and Chandra spectral analysis of the 31 3 deg ^2 Stripe 82X by Alessandro Peca et al. on Tuesday 22 November We present X-ray spectral analysis of XMM and Chandra observations in the 31.3 deg$^2$ Stripe-82X (S82X) field. Of the 6181 X-ray sources in this field, we analyze a sample of 2937 active galactic nuclei (AGN) with solid redshifts and sufficient counts determined by simulations. Our results show a population with median values of spectral index $Gamma=1.94_{-0.39}^{+0.31}$, column density log$,N_{mathrm{H}}/mathrm{cm}^{-2}=20.7_{-0.5}^{+1.2}$ and intrinsic, de-absorbed, 2-10 keV luminosity log$,L_{mathrm{X}}/mathrm{erg,s}^{-1}=44.0_{-1.0}^{+0.7}$, in the redshift range 0-4. We derive the intrinsic fraction of AGN that are obscured ($22leqmathrm{log},N_{mathrm{H}}/mathrm{cm}^{-2}43$. This work constrains the AGN obscuration and spectral shape of the still uncertain high-luminosity and high-redshift regimes (log$,L_{mathrm{X}}/mathrm{erg,s}^{-1}>45.5$, $z>3$), where the obscured AGN fraction rises to $64pm12%$. We report a luminosity and density evolution of the X-ray luminosity function, with obscured AGN dominating at all luminosities at $z>2$ and unobscured sources prevailing at log$,L_{mathrm{X}}/mathrm{erg,s}^{-1}>45$ at lower redshifts. Our results agree with evolutionary models in which the bulk of AGN activity is triggered by gas-rich environments and in a downsizing scenario. Also, the black hole accretion density (BHAD) is found to evolve similarly to the star formation rate density, confirming the co-evolution between AGN and host-galaxy, but suggesting different time scales in their growing history. The derived BHAD evolution shows that Compton-thick AGN contribute to the accretion history of AGN as much as all other AGN populations combined. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2210.08030v2

function compton stripe agn gamma x ray luminosity arxiv bhad cosmic evolution xmm newton spectral analysis xmm

On the cosmic evolution of AGN obscuration and the X-ray luminosity function: XMM-Newton and Chandra spectral analysis of the 31 3 deg ^2 Stripe 82X

Play Episode Listen Later Oct 17, 2022 1:12

On the cosmic evolution of AGN obscuration and the X-ray luminosity function: XMM-Newton and Chandra spectral analysis of the 31 3 deg ^2 Stripe 82X by Alessandro Peca et al. on Monday 17 October We present X-ray spectral analysis of XMM and Chandra observations in the 31.3 deg$^2$ Stripe-82X (S82X) field. Of the 6181 unique X-ray sources in this field, we select and analyze a sample of 2937 candidate active galactic nuclei (AGN) with solid redshifts and sufficient counts determined by simulations. Our results show an observed population with median values of spectral index $Gamma=1.94_{-0.39}^{+0.31}$, column density log $N_H/rm{cm}^{-2}=20.7_{-0.5}^{+1.2}$ ($21.6_{-0.9}^{+0.7}$ considering upper limits) and intrinsic, de-absorbed, 2-10 keV luminosity log $L_X/rm{erg,s}^{-1}=44.0_{-1.0}^{+0.7}$, in the redshift range 0-4. Correcting for observational biases, we derive the intrinsic, model-independent, fraction of AGN that are obscured ($22leqrm{log},N_H/rm{cm}^{-2}43$. This work constrains the AGN obscuration and spectral shape of the still uncertain high-luminosity and high-redshift regimes (log $L_X/rm{erg,s}^{-1}>45.5$, $z>3$), where the obscured AGN fraction rises to $64pm12%$. The total, obscured, and unobscured X-ray luminosity functions (XLFs) are determined out to $z=4$. We report a luminosity and density evolution of the total XLF, with obscured AGN dominating at all luminosities at $z>2$ and unobscured sources prevailing at log $L_X/rm{erg,s}^{-1}>45$ at lower redshifts. Our results agree with the evolutionary models in which the bulk of AGN activity is triggered by gas-rich environments and in a downsizing scenario. Also, the black hole accretion density is found to evolve similarly to the star formation rate density, confirming the co-evolution scenario between AGN and host galaxy, but suggesting different time scales in their growing history. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2210.08030v1

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Cosmic evolution of grain size distribution in galaxies using the ν^2 GC semi-analytic model

Silicon Valley Astronomy Lectures

Play Episode Listen Later Oct 12, 2022 0:54

Cosmic evolution of grain size distribution in galaxies using the ν^2 GC semi-analytic model by Ryu Makiya et al. on Wednesday 12 October We investigate the cosmological evolution of interstellar dust with a semi-analytical galaxy formation model ($nu^2$GC), focusing on the evolution of grain size distribution. The model predicts the statistical properties of dust mass and grain size distribution in galaxies across cosmic history. We confirm that the model reproduces the relation between dust-to-gas ratio and metallicity in the local Universe, and that the grain size distributions of the Milky Way (MW)-like sample become similar to the so-called MRN distribution that reproduces the observed MW extinction curve. Our model, however, tends to overpredict the dust mass function at the massive end at redshift $zlesssim 0.8$ while it reproduces the abundance of dusty galaxies at higher redshifts. We also examine the correlation between grain size distribution and galaxy properties (metallicity, specific star formation rate, gas fraction, and stellar mass), and observe a clear trend of large-grain-dominated, small-grain-dominated, and MRN-like grain size distributions from unevolved to evolved stages. As a consequence, the extinction curve shapes are flat, steep, and intermediate (MW-like) from the unevolved to evolved phases. At a fixed metallicity, the grain size distribution tends to have larger fractions of small grains at lower redshift; accordingly, the extinction curve tends to be steeper at lower redshift. We also predict that supersolar-metallicity objects at high redshift have flat extinction curves with weak 2175 AA bump strength. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2210.06176v1

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Cosmobiology: Recent Progress in Cosmology, Exoplanets, and the Prerequisites for Life in the Universe

Play Episode Listen Later May 3, 2022 73:18

In this talk, astrobiologist Charles Lineweaver discusses the history of life on Earth and what we can deduce from our understanding of the universe about the existence and history of life elsewhere. He recounts the ongoing discovery of large numbers of exoplanets -- planets orbiting other stars -- and what we can learn from the varieties of planets that are being found. He challenges us to think about what parts in the development of intelligent life on Earth would necessarily happen elsewhere and what parts might be unique to our planet. Charles Lineweaver is an honorary associate professor at the Australian National University's Research School of Astronomy and Astrophysics and Research School of Earth Science. His research areas include exoplanetology (the statistical analysis of exoplanets and their habitability), cosmobiology (using our new knowledge of cosmology to constrain life in the Universe) and the study of cancer. He recently completed an online video course at: arewealone.us. Dr. Lineweaver earned a BA in history from the State University of New York at Binghamton, an MA in English from Brown University, a BS is physics from Ludwig Maximillian's University in Munich, and a PhD in physics at the University of California, Berkeley in 1994.

CW 201: Mystery of the Universe: Lecture 6: Cosmic Evolution (April 18, 1920) by Rudolf Steiner

Rudolf Steiner Audio

Play Episode Listen Later Aug 21, 2021 38:54

mystery universe lecture rudolf steiner cosmic evolution

1st Problem for Cosmic Evolution: Does the Physics of the Big Bang Work?: Interview with Jay Seegert

Current Topics in Science

Play Episode Listen Later Jul 17, 2021 72:11

Jay Seegert asks the most important question, "What is our starting point?" What is the primary axiom? How did life, our earth, and the universe begin? He puts the physics of the Big Bang to the test and examines whether or not a case for God can be made. Stay tuned!

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Physicist John Bloom: Cosmic Design and the Big Bang

Intelligent Design the Future

Play Episode Listen Later Mar 26, 2021 13:50

In celebration of Return of the God Hypothesis, ID the Future is pleased to feature this classic episode with physicist John Bloom, a CSC Fellow and professor at Biola University. Here he explains some of the exciting evidence of design from physics and cosmology, evidence unknown a century ago. If this subject intrigues you, take a look at the new book from philosopher of science and bestselling author Stephen Meyer—Return of the God Hypothesis: Three Scientific Discoveries That Reveal the Mind Behind the Universe. Launch date is Tuesday, March 30, 2021, but you can get some exciting bonus material by pre-ordering the book. The bonus material includes a free digital booklet on intelligent design; a discount on Dr. Meyer’s online Read More › Source

Religion in Human and Cosmic Evolution: Whitehead's Alternative Vision

Footnotes2Plato

Play Episode Listen Later Mar 6, 2021 37:51

This episode is also available as a blog post: http://footnotes2plato.com/2015/04/26/religion-in-human-and-cosmic-evolution-dennett-whitehead-and-bellah/

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Ciencia 5 S06E11

Ciencia 5 by Arradio

Play Episode Listen Later Feb 13, 2020 22:20

E para rematar a temporada de podcast e celebrar o capítulo 100 teño algo preparado. Primeiro un espacial coas novas máis importantes do ano pasado. Xa leva uns meses gravado ;) Quería rematar con algo para darvos as gracias pero coa nova normativa non sei facelo sen ter que pedirvos datos sensibles como son as vosas direccións persoais ou contas de correo electrónico Se sabedes como facelo agradecería que me enviarades un tuit a @ciencia5arradio, ao blogue https://cienciacinco.blogspot.com/ ou un comentario en Ivoox. Desculpade as molestias Por favor o nome ou apodo que empreguedes que sexa de polo menos seis caracteres e que so a saibades vos Os libro que tiña pensado era a escoller un entre 3: En castelán: Todo es cuestión de química: ... y otras maravillas de la tabla periódica (Para curiosos) de Deborah García Bello En galego: ¿A QUE ALTURA ESTÁ O CEO? De Jorge Mira Pérez En inglés: Cosmos: The Story of Cosmic Evolution, Science and Civilisation de Carl Sagan Ou un cheque regalo (20euros) en Amazon, mandarvos o diñeiro por Paypal ou similares (a través da conta de correo electrónico) Pero non podo pola lei de protección de datos ou non sei facelo. Test https://forms.gle/qDuc1Jq5Pnu2sqQQ9

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#30 - Jill Tarter

The Primalosophy Podcast

Play Episode Listen Later Nov 11, 2019 58:00

Astronomer Jill Tarter is director of the SETI (Search for Extraterrestrial Intelligence) Institute's Center for SETI Research, and also holder of the Bernard M. Oliver Chair for SETI. She led Project Phoenix, a decade-long SETI scrutiny of about 750 nearby star systems, using telescopes in Australia, West Virginia and Puerto Rico. While no clearly extraterrestrial signal was found, this project was the most comprehensive targeted search for artificially generated cosmic signals ever undertaken. Tarter serves on the management board for the Allen Telescope Array, a massive instrument that will eventually include 350 antennas, and that has already increased the speed and the spectral range of the hunt for signals by orders of magnitude. With the 2009 TED Prize, Tarter launched SETILive, a citizen project that allowed volunteers to stream live data from the array and help with the search. Tarter's life work is chronicled in the book, Making Contact: Jill Tarter and the Search for Extraterrestrial Intelligence. She's deeply committed to the education of future citizens and scientists. Beyond her scientific leadership at NASA and the SETI Institute, Tarter has been actively involved in developing curriculum for children. She was Principal Investigator for two curriculum development projects funded by NSF, NASA, and others. One project, the Life in the Universe series, created 6 science teaching guides for grades 3-9. The other project, Voyages Through Time, is an integrated high school science curriculum on the fundamental theme of evolution in six modules: Cosmic Evolution, Planetary Evolution, Origin of Life, Evolution of Life, Hominid Evolution and Evolution of Technology. She also created the TED-Ed lesson, "Calculating the Odds of Intelligent Alien Life." Connect with Jill: https://www.seti.org/our-scientists/jill-tarter https://www.ted.com/speakers/jill_cornell_tarter https://twitter.com/jilltarter?lang=en Connect with Nick Holderbaum: https://www.primalosophy.com/ https://twitter.com/primalosophy https://www.youtube.com/channel/UCBn7jiHxx2jzXydzDqrJT2A If you enjoy the podcast please leave a review on iTunes. https://podcasts.apple.com/us/podcast/the-primalosophy-podcast/id1462578947 If you would like to set up a consult call with Nick Holderbaum, you can schedule with him at https://www.primalosophy.com/health-coaching

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Cosmic Evolution 06 Iccha-shakti Willpower

willpower shakti thelema cosmic evolution

Play Episode Listen Later Jul 9, 2019 158:14

Iccha-shakti is the will of our consciousness and the sexual force of life, it is the will in all dynamic forces of the universe. It is willpower. Thelema. This lecture explains three types of will related to different stages of the path: Ratzon La’Hshpia רצון להשפיע – Will to Influence Ratzon La’Kabel רצון לקבל – Will to Receive Ratzon La’Tet רצון לתת – Will to Give

Cosmic Evolution 06 Iccha-shakti Willpower PDF

willpower shakti cosmic evolution

Play Episode Listen Later Jul 9, 2019

PDF to accompany the audio lecture.

Cosmic Evolution 05 Four Creatures of Alchemy PDF

creatures alchemy cosmic evolution

Play Episode Listen Later May 1, 2019

Accompanies the audio lecture.

Cosmic Evolution 05 Four Creatures of Alchemy AUDIO

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Play Episode Listen Later Apr 30, 2019 161:03

The symbolism in the Bible has definite and exact meanings, but to see them you need to know Kabbalah, Alchemy, and the Hebrew letters. The four creatures of Ezekiel represent specific forces within nature and within us, and are synthesized in the sphinx, the four gospels of the New Testament, and the four horsemen of the Apocalypse.

399 - Neil deGrasse Tyson: What is The Truth? The Real Science of Inquiry

The James Altucher Show

Play Episode Listen Later Oct 9, 2018 59:34

“If the world ends it's because people in power didn't listen to the warnings of physicists,” Neil deGrasse Tyson said. Neil is the world’s window into physics. And he just came out with a new book “Accessory to War: The Unspoken Alliance Between Astrophysics and the Military.” He told me how physicists think. And this kind of thinking can be used to make you a better communicator, help you to avoid conflict, make smart decisions, but he also told me odd stories. Like how Columbus used astrophysics to exploit power, why E = mc2 gave us atomic bombs, who the first trillionaire will be, why physics stops Neil from having normal fights with his wife and more. If you don’t think you "get" science, you’ll be a new person after this podcast. Links and Resources Accessory to War: The Unspoken Alliance Between Astrophysics and the Military by Neil deGrasse Tyson StarTalk radio (Neil’s podcast) Astrophysics for People in a Hurry by Neil deGrasse Tyson Death by Black Hole: And Other Cosmic Quandaries by Neil deGrasse Tyson Origins: Fourteen Billion Years of Cosmic Evolution by Neil deGrasse Tyson Astrophysics for Young People in a Hurry by Neil deGrasse Tyson Cosmos: A Spacetime Odyssey Also Mentioned "The Ultimate Guide to Self Publishing." This report will teach you all about how to successfully self-publish your own book. And how I created a new revenue stream for myself from it. All the tips are right here. Get your copy at jamesaltucher.com/publish The Hayden Planetarium at the American Museum of Natural History Richard Holbrooke Key and Peele’s parody on Neil deGrasse Tyson My interview with Naveen Jain - Ep. 135 “The Billionaire Who Wants to Go to The Moon” Carl Sagan Scientific American I write about all my podcasts! Check out the full post and learn what I learned at jamesaltucher.com/podcast. Thanks so much for listening! If you like this episode, please subscribe to “The James Altucher Show” and rate and review wherever you get your podcasts: Apple Podcasts Stitcher iHeart Radio Spotify Follow me on Social Media: Twitter Facebook Linkedin Instagram See omnystudio.com/listener for privacy information.

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399 - Neil deGrasse Tyson: What is The Truth? The Real Science of Inquiry

The James Altucher Show

Play Episode Listen Later Oct 8, 2018 59:33 Transcription Available

"If the world ends it's because people in power didn't listen to the warnings of physicists," Neil deGrasse Tyson said. Neil is the world's window into physics. And he just came out with a new book "Accessory to War: The Unspoken Alliance Between Astrophysics and the Military." He told me how physicists think. And this kind of thinking can be used to make you a better communicator, help you to avoid conflict, make smart decisions, but he also told me odd stories. Like how Columbus used astrophysics to exploit power, why E = mc2 gave us atomic bombs, who the first trillionaire will be, why physics stops Neil from having normal fights with his wife and more. If you don't think you "get" science, you'll be a new person after this podcast. Links and Resources Accessory to War: The Unspoken Alliance Between Astrophysics and the Military by Neil deGrasse Tyson StarTalk radio (Neil's podcast) Astrophysics for People in a Hurry by Neil deGrasse Tyson Death by Black Hole: And Other Cosmic Quandaries by Neil deGrasse Tyson Origins: Fourteen Billion Years of Cosmic Evolution by Neil deGrasse Tyson Astrophysics for Young People in a Hurry by Neil deGrasse Tyson Cosmos: A Spacetime Odyssey Also Mentioned "The Ultimate Guide to Self Publishing." This report will teach you all about how to successfully self-publish your own book. And how I created a new revenue stream for myself from it. All the tips are right here. Get your copy at jamesaltucher.com/publish The Hayden Planetarium at the American Museum of Natural History Richard Holbrooke Key and Peele's parody on Neil deGrasse Tyson My interview with Naveen Jain - Ep. 135 "The Billionaire Who Wants to Go to The Moon" Carl Sagan Scientific American I write about all my podcasts! Check out the full post and learn what I learned at jamesaltucher.com/podcast. Thanks so much for listening! If you like this episode, please subscribe to "The James Altucher Show" and rate and review wherever you get your podcasts: Apple Podcasts Stitcher iHeart Radio Spotify Follow me on Social Media: Twitter Facebook Linkedin Instagram ------------What do YOU think of the show? Head to JamesAltucherShow.com/listeners and fill out a short survey that will help us better tailor the podcast to our audience!Are you interested in getting direct answers from James about your question on a podcast? Go to JamesAltucherShow.com/AskAltucher and send in your questions to be answered on the air!------------Visit Notepd.com to read our idea lists & sign up to create your own!My new book, Skip the Line, is out! Make sure you get a copy wherever books are sold!Join the You Should Run for President 2.0 Facebook Group, where we discuss why you should run for President.I write about all my podcasts! Check out the full post and learn what I learned at jamesaltuchershow.com------------Thank you so much for listening! If you like this episode, please rate, review, and subscribe to "The James Altucher Show" wherever you get your podcasts: Apple PodcastsiHeart RadioSpotifyFollow me on social media:YouTubeTwitterFacebookLinkedIn

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Episode 004 - Complexity, Cosmic Evolution, Change and Certainty

That's So Second Millennium

Play Episode Listen Later Apr 23, 2018 40:20

Paul elaborates on how the hylomorphic principle, if anything, fits quantum physics better than it fit the world the medievals knew. Bill asks whether the worldview of people of faith is too rigid, while that of the secular masses is too loose. Paul wonders what "shades of gray" really means, and points out that even though the materialist worldview has become harder and more dogmatic, 20th century physics really exploded its scientific foundation. This epsiode brought to you by Arthur Compton's Freedom of Man and Stephen Barr's Modern Physics and Ancient Faith.

man complexity ancient faith cosmic evolution

Cosmic Evolution, with David Grinspoon

StarTalk All-Stars

Play Episode Listen Later Mar 13, 2018 48:56

Explore the cosmic evolution of all things including symbiogenesis, the geopolitical state, the Gaia hypothesis, and more, featuring astrobiologist David Grinspoon, comic co-host Chuck Nice, and biologist and author Tyler Volk.NOTE: StarTalk All-Access subscribers can watch or listen to this entire episode commercial-free here: https://www.startalkradio.net/all-access/cosmic-evolution-with-david-grinspoon/Image Credit: NASA Goddard Space Flight Center Image by Reto Stöckli (land surface, shallow water, clouds). Enhancements by Robert Simmon.Don't miss an episode of StarTalk All-Stars. Subscribe on:Apple Podcasts: https://itun.es/us/P9kphb.cStitcher: http://www.stitcher.com/podcast/startalk-allstarsTuneIn: tunein.com/startalkallstarsSoundCloud: https://soundcloud.com/startalk_all-starsGoogle Play Music: https://play.google.com/music/listen#/ps/I2nz5bguurd5se7zu4fhnd25lk4

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Cosmic Evolution, with David Grinspoon

StarTalk All-Stars

Play Episode Listen Later Mar 13, 2018 48:56

Explore the cosmic evolution of all things including symbiogenesis, the geopolitical state, the Gaia hypothesis, and more, featuring astrobiologist David Grinspoon, comic co-host Chuck Nice, and biologist and author Tyler Volk. NOTE: StarTalk All-Access subscribers can watch or listen to this entire episode commercial-free here: https://www.startalkradio.net/all-access/cosmic-evolution-with-david-grinspoon/ Image Credit: NASA Goddard Space Flight Center Image by Reto Stöckli (land surface, shallow water, clouds). Enhancements by Robert Simmon. Don’t miss an episode of StarTalk All-Stars. Subscribe on: Apple Podcasts: https://itun.es/us/P9kphb.c Stitcher: http://www.stitcher.com/podcast/startalk-allstars TuneIn: tunein.com/startalkallstars SoundCloud: https://soundcloud.com/startalk_all-stars Google Play Music: https://play.google.com/music/listen#/ps/I2nz5bguurd5se7zu4fhnd25lk4

explore gaia enhancements chuck nice david grinspoon cosmic evolution startalk all stars

13 Episode 4: Chapter 4: Esoteric Science: Cosmic Evolution and the Human Being by Rudolf Steiner

Rudolf Steiner Audio

Play Episode Listen Later Mar 9, 2017 320:06

rudolf steiner cosmic evolution esoteric science

Cosmic Evolution: From Big Bang to Humankind

Politics - Video (HD)

Play Episode Listen Later Jan 22, 2016 82:58

big bang humankind cosmic evolution

Everything from nothing, or how our universe was made

Oxford Physics Public Lectures

Play Episode Listen Later May 29, 2015 55:42

The 2015 Wetton Lecture delivered by Professor Carlos Frenk Cosmology confronts some of the most fundamental questions in the whole of science. How and when did our universe begin? What is it made of? How did galaxies and other structures form? There has been enormous progress in the past few decades towards answering these questions. For example, recent observations have established that our universe contains an unexpected mix of components: ordinary atoms, exotic dark matter and a new form of energy called dark energy. Gigantic surveys of galaxies reveal how the universe is structured. Large supercomputer simulations recreate the evolution of the universe and provide the means to relate processes occurring near the beginning with observations of the universe today. A coherent picture of cosmic evolution, going back to a tiny fraction of a second after the Big Bang, is beginning to emerge. However, fundamental issues, like the identity of the dark matter and the nature of the dark energy, remain unresolved.

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The Three Stages of Cosmic Evolution + Readings

The Neil and Kristin Baker Psychic Hour

Play Episode Listen Later Feb 16, 2015 58:00

World renowned psychic Neil Baker and host Kristin are featured on this hour long show which deals with the vast, expansive world of psychic phenomenon. This show delves into the extraordinary mysteries that reside beyond the physical realm of common experience. Neil and Kristin are your guides and teachers as they establish a stage that is both personal and universal, while callers have the opportunity to connect with Neil for one-on-one readings. Listener line: 914.338.0164. For an in-depth, personal reading, please call Neil at 562.596.7818.

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A Universe from Nothing: Cosmic Evolution, Natural Selection, and How to Get Something from Nothing, Part 1

Alabama Lectures on Life’s Evolution - ALLELE

Play Episode Listen Later Aug 26, 2014 41:14

The final lecture in the 2013-2014 academic year for the ALLELE (Alabama Lectures on Life's Evolution) series. Dr. Lawrence Krauss, a world-renowned physicist and public intellectual discusses how to get something from nothing.

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A Universe from Nothing: Cosmic Evolution, Natural Selection, and How to Get Something from Nothing, Part 2

Alabama Lectures on Life’s Evolution - ALLELE

Play Episode Listen Later Aug 26, 2014 33:14

The final lecture in the 2013-2014 academic year for the ALLELE (Alabama Lectures on Life's Evolution) series. Dr. Lawrence Krauss, a world-renowned physicist and public intellectual discusses how to get something from nothing.

universe natural selection something from nothing lawrence krauss cosmic evolution

Cosmic Evolution 04 Anthropogenesis History of Mankind

history earth bible evolution hebrew atlantis mankind polar kabbalah zohar atlanteans lemurian hyperborean cosmic evolution

Play Episode Listen Later Mar 16, 2014 111:54

A history of all the root races of the Earth, incuding the Polar, Hyperborean, Lemurian, Atlantean, and Aryan races. Evolution is a law of nature that applies to the development of the soul (consciousness), but not in the way most people realize. Furthermore, the Bible explains the previous races and ages (Atlantena, Lemurian, and more), and about fallen angels and the existence of demons, but one has to know Hebrew and Kabbalah to understand. This course reveals the essential clues to understand how we got to where we are now. Learn about the reality of the development of the soul as it is hidden in the Kabbalah, the Bible, the Hebrew letters, and the Zohar.

Cosmic Evolution 01 Cosmic Races in the Bible PDF

bible races cosmic evolution

Play Episode Listen Later Nov 2, 2013

PDF to accompany the audio lecture.

Cosmic Evolution 03 Cosmic Evolution in the Bible PDF

Play Episode Listen Later Nov 2, 2013

PDF to accompany the audio lecture.

bible cosmic evolution

Cosmic Evolution 02 Fallen Angels PDF

fallen angels cosmic evolution

Play Episode Listen Later Nov 2, 2013

PDF to accompany the audio lecture.

Neil deGrasse Tyson - Communicating Science to the Public

Play Episode Listen Later Jul 29, 2013 47:19

Point of Inquiry is on a short hiatus right now as we transition to a new podcast team. In the meantime, enjoy these classic episodes from the POI archives, featuring Neil deGrasse Tyson, Bill Nye, Susan Jacoby, and other luminaries in the science and secularism movement. Neil deGrasse Tyson is one of America’s leading spokespersons for science. The research areas he focuses on are star formation, exploding stars, dwarf galaxies, and the structure of our own galaxy, the Milky Way. In addition to many scholarly publications, Dr Tyson is one of America’s most respected science writers, and he writes a monthly column for Natural History magazine simply titled the “Universe.” Among his eight books is his memoir The Sky is Not the Limit: Adventures of an Urban Astrophysicist; and also Origins: Fourteen Billion Years of Cosmic Evolution, co-written with Donald Goldsmith. His most recent book is Death by Black Hole: And Other Cosmic Quandaries. He is the on-camera host of PBS-NOVA’s program ScienceNow, which explore the frontiers of all the science that shapes our understanding of our place in the universe. He is the first occupant of the Frederick P. Rose Directorship of the Hayden Planetarium in Manhattan, where he also teaches. In this conversation with D.J. Grothe, Neil deGrasse Tyson examines various approaches to informal science education, his experiences teaching science through pop-culture media outlets, and controversies regarding science popularization. He explains his views on the implications of science for religious belief, questioning the strategy of science educators who seem to equate science and atheism. He also recounts the direct influence of Carl Sagan on his professional development.

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Cosmic Evolution 03 Cosmic Evolution in the Bible

Play Episode Listen Later Oct 20, 2012 125:45

This document accompanies the audio lecture.

bible cosmic evolution

Cosmic Evolution 02 Fallen Angels

fallen angels cosmic evolution

Play Episode Listen Later Jul 22, 2012 120:14

This document accompanies the audio lecture.

Cosmic Evolution 01 Cosmic Races in the Bible

bible races cosmic evolution

Play Episode Listen Later Jun 30, 2012 120:38

This document accompanies the audio lecture.

Cosmic Evolution and Life

24. Chemistry and Context for Life

Play Episode Listen Later Jul 28, 2011 1:47

Transcript: The universe has not always been the way it is now. The early universe was smaller, hotter, and denser. In fact in the universe soon after the big bang, matter was too hot to exist in the normal, neutral form. Atoms and molecules did not exist, and even after this period, the only elements that could exist were hydrogen and the helium created in cosmic nucleosynthesis by the universe itself plus trace amounts of lithium and beryllium. Thus in the very early universe, there were essentially no heavy elements, so no possibility to form planets, and no possibility of carbon chemistry. The first stars formed a few hundred million years after the big bang. The time is still uncertain, and this epoch has not yet been directly observed by astronomers. However, as soon as the first stars and galaxies formed, heavy elements began to be produced in the cycle of star birth and death: fusion in the cores of massive stars, ejection of the elements in supernovae, and winds from massive stars into the interstellar medium where they subsequently could be part of a next generation of stars. Thus over cosmic time, the heavy element abundance in the universe has steadily increased, and in that sense life can become more likely as time progresses. But not all parts of the universe are created equal. Elliptical galaxies form early, have relatively low rates of star formation, and low heavy element abundances whereas spiral galaxies have active star formation and higher heavy element abundances. So we might imagine that spiral galaxies are more likely galactic sites for life to occur.

atoms elliptical cosmic evolution

Cosmic Evolution

23. The Big Bang, Inflation, and General Cosmology 2

Play Episode Listen Later Jul 28, 2011 0:58

Transcript: The big bang model predicts that the universe is evolving, that it was smaller, hotter, and denser in the past. Astronomers would like to test this basic prediction. One test involves spectral lines in distant quasi-stellar objects or quasars where the cosmic microwave background radiation excites the line. Observations and comparisons at different redshifts show that the temperature of the microwave background radiation, which is currently 2.7 Kelvin, was indeed hotter in the past, varying as one plus the redshift as predicted by the big bang model. Also, there are many observations to show that galaxies themselves have evolved, being smaller and having been assembled from pieces so they grow bigger and brighter with time and redshift to the present day. The universe is indeed evolving.

observations astronomers cosmic evolution

Studying Cosmic Evolution with the XMM-Newton Distant Cluster Project

Fakultät für Physik - Digitale Hochschulschriften der LMU - Teil 02/05

Play Episode Listen Later Nov 29, 2007

Investigating X-ray luminous galaxy clusters at high redshift (z>~1) provides a challenging but fundamental constraint on evolutionary studies of the largest virialized structures in the Universe, the baryonic matter component in form of the hot intracluster medium (ICM), their galaxy populations, and the effects of the mysterious Dark Energy. The main aim of this thesis work is to establish the observational foundation for the XMM-Newton Distant Cluster Project (XDCP). This new generation serendipitous X-ray survey is focused on the most distant galaxy clusters at z>1, based on the selection of extended X-ray sources, their identification as clusters and redshift estimation via two-band imaging, and their final spectroscopic confirmation. As a first step, I have analyzed 80 deg^2 (469 fields) of deep XMM-Newton archival X-ray data with a new pipeline processing system and selected almost 1000 extended sources as galaxy cluster candidates, 75% of which could be identified as clusters or groups at z

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Neil deGrasse Tyson - Communicating Science to the Public

Play Episode Listen Later Nov 16, 2007 47:20

Neil deGrasse Tyson is one of America's leading spokespersons for science. The research areas he focuses on are star formation, exploding stars, dwarf galaxies, and the structure of our own galaxy, the Milky Way. In addition to many scholarly publications, Dr Tyson is one of America’s most respected science writers, and he writes a monthly column for Natural History magazine simply titled the “Universe.? Among his eight books is his memoir The Sky is Not the Limit: Adventures of an Urban Astrophysicist; and also Origins: Fourteen Billion Years of Cosmic Evolution, co-written with Donald Goldsmith. His most recent book is Death by Black Hole: And Other Cosmic Quandaries. He is also the on-camera host of PBS-NOVA’s program ScienceNow, which explore the frontiers of all the science that shapes our understanding of our place in the universe. He is the first occupant of the Frederick P. Rose Directorship of the Hayden Planetarium in Manhattan, where he also teaches. In this conversation with D.J. Grothe, Neil deGrasse Tyson examines various approaches to informal science education, his experiences teaching science through pop-culture media outlets, and controversies regarding science popularization. He explains his views on the implications of science for religious belief, questioning the strategy of science educators who seem to equate science and atheism. He also recounts the direct influence of Carl Sagan on his professional development.

america death universe public manhattan neil degrasse tyson natural history milky way carl sagan communicating science grothe hayden planetarium pbs nova cosmic evolution frederick p rose science now

Neil deGrasse Tyson - Death by Black Hole

Play Episode Listen Later Jan 25, 2007 31:02

Neil deGrasse Tyson is one of America's leading spokespersons for science. The research areas he focuses on are star formation, exploding stars, dwarf galaxies, and the structure of our own galaxy, the Milky Way. In addition to many scholarly publications, Dr Tyson is one of America's most respected science writers, and he writes a monthly column for Natural History magazine simply titled the "Universe." Among his eight books is his memoir The Sky is Not the Limit: Adventures of an Urban Astrophysicist; and also Origins: Fourteen Billion Years of Cosmic Evolution, co-written with Donald Goldsmith. He is the on-camera host of PBS-NOVA's program ScienceNow, which explore the frontiers of all the science that shapes our understanding of our place in the universe. He is the first occupant of the Frederick P. Rose Directorship of the Hayden Planetarium in Manhattan, where he also teaches. In this conversation with D.J. Grothe, Dr. Tyson explores the "popularization" of science, the ups and downs of science education, why scientists should be personally motivated to increase public science interest, whether his studies in astrophysics make him more or less religious, the "spirituality" of the scientific outlook, and other topics that he treats in his new book Death By Black Hole. He also talks about his experiences hosting PBS-NOVA's ScienceNow.

america death universe manhattan black holes neil degrasse tyson natural history milky way grothe hayden planetarium pbs nova cosmic evolution frederick p rose science now

Jill Tarter - Are We Alone?

Play Episode Listen Later Oct 20, 2006 42:37

Jill Tarter holds the Bernard M. Oliver Chair for SETI (Search for Extraterrestrial Intelligence) at the SETI Institute in Mountain View, CA where she also serves as director of the Center for SETI Research. She served as Project Scientist for NASA’s SETI program, and has conducted a number of observational programs at radio observatories worldwide. Since funding for NASA’s SETI program was cut in 1993, she has served in a leadership role to secure private funding to continue the the exploratory science. Her work has brought her wide recognition in the scientific community, including the Lifetime Achievement Award from Women in Aerospace, two Public Service Medals from NASA, and many other awards. She was elected as a fellow of the American Association for the Advancement of Science in 2002 and a California Academy of Sciences Fellow in 2003. In 2004, Time Magazine named her one of the Time 100 most influential people in the world, and in 2005 Tarter was awarded the Carl Sagan Prize for Science Popularization at Wonderfest, the San Francisco Festival of Science. Tarter is very involved in childhood science education: In addition to her leadership at NASA and SETI Institute, she has spearheaded the creation of two curriculum development projects funded by NSF, NASA, and others. The first, the Life in the Universe series, created 6 science teaching guides for grades 3-9, which were published in the mid nineties. Her second project, Voyages Through Time, is an integrated high school science curriculum on the fundamental theme of evolution in six modules: Cosmic Evolution, Planetary Evolution, Origin of Life, Evolution of Life, Hominid Evolution and Evolution of Technology. In this conversation with D.J. Grothe, Jill Tarter discusses the possibility of life elsewhere in the universe, why the search for it is important, the implications for religious belief of such a discovery, recent cuts in science funding, the emerging field of astrobiology, and the need for teaching evolution in the public schools, among other subjects. She also talks about the new Carl Sagan Center for the Study of Life in the Universe, which was announced earlier in the week. Also in this episode, Tom Flynn asks Did You Know? about the search for extra-terrestrial intelligence.

Neil deGrasse Tyson - The Sky Is Not the Limit