Podcasts about accelerating universe

No século 20, descobertas revolucionárias abalaram a visão estática do cosmos. A constatação da expansão contínua do universo desafia conceitos antigos, revelando a existência de energia e matéria escuras, enigmas cruciais na cosmologia. A inadequação das teorias atuais para explicar a expansão acelera do universo revela coisas fundamentais do espaço, tempo e gravidade, que não estamos percebendo, revelando um cosmos mais estranho e desconcertante do que imaginávamos. O que acontece nas entranhas do universo que explicariam esses fenômenos?

Twenty years ago, astronomers were astonished to learn from observations of exploding stars that cosmic expansion is speeding up. We attribute this to a mysterious “dark energy” that pervades the universe and makes up 70 percent of it. Scientists are working in many ways to learn more about the nature of dark energy, but our reservoir of ignorance is deep.On Oct. 24, astronomer Bob Kirshner gave the 2018 Distinguished Lecture in Astronomy, “From the Accelerating Universe to Accelerating Science,” for which he summarizes the present state of knowledge and looks ahead to new ways to use infrared observations of supernovae to improve our grip on dark energy.Kirshner leads the science program at the Gordon and Betty Moore Foundation, which makes over $100 million in grants for basic science each year, and served on the astronomy faculty at Harvard for 30 years.The Distinguished Lecture in Astronomy is an annual public lecture sponsored by the Department of Astronomy at UC Berkeley.Listen and read the transcript on Berkeley News. See acast.com/privacy for privacy and opt-out information.

This is the second of 6 ‘Astrotour’ episodes of Astrophiz, where we’ll be publishing recordings of interviews I did on a two and a half thousand kilometre tour of five of Australia’s finest Eastern state radio and optical observatories. Dr Chris Lidman, who is the first Director of the ANU Siding Spring Observatory, which is deep in a pristine dark sky parkin the Wurrumbungle ranges in North Eastern New South Wales in Australia. Chris was a member of the team which shared the 2011 Nobel Prize for Physics andhas more than 30,000 citations from 197 research papers and more than 100 other publications. So apart from being a very active researcher, he has responsibility for many of the telescopes based on site, from the powerful Skymapper right up to this immense 3.9m AAT We also extend our condolences to Dr Ian Musgrave, whose 96yo mother passed away recently. He will be back with us in two weeks. So in Ian’s absence for this episode, I’ll give a shortened version of Ian’s expert commentary “What’s Up Doc” and I’ll try to give you an idea of some things to watch out for in the sky over the next couple of weeks. Now because I’m doing an Ian here, I’ll go off on one of his astronomical tangents about Mercury. The BepiColombo Mercury mission was launched from French Giana. In the news:  The search for FRBs is turning up some really interesting results. A new paper from ICRAR is published.

In anticipation of our August 1 Eclipse 2017 Spectacular with astronomer Robert Kirshner, we replay a 2015 podcast where Lian attends a speech at CalTech by Dr. Kirshner. The Accelerating Universe: Lian attends a talk by astrophysicist Dr. Robert Kirshner about The Accelerating Universe. Dr. Kirshner happens to be our cousin, but that doesn't mean we know what he's talking about. Lian tries to break down what's happening in the world of Dark Matter and Dark Energy. Interested? Read more about his book, The Exatravagent Universe here: http://www.amazon.com/The-Extravagant-Universe-Exploding-Accelerating/dp/069111742XTo subscribe to Satellite Sisters on Apple Podcasts, click here. To subscribe to Satellite Sisters on Stitcher, click here.To subscribe to the Satellite Sisters RSS feed, click here. The complete Satellite Sisters podcast audio archive is here. Don't forget to subscribe to Satellite Sisters Talk TV if you want to listen to Lian and Julie's TV recaps of CBS drama Madam Secretary and PBS Poldark recap Pol,Dark and Handsome. This week's episode of Outlander called The Search. This episode has it all: Singing, dancing, murder, confessions and lactation! We loved it. Words of advice: Plant Potatoes and Express Yourself. Macchu Pichu Prep: Julie heads off to Peru for an Epic Adventure. And she wants to know: What's a Spanish Shower? The Truth About Nail Salons: Read the two part series on the Price of Pretty Nails by reporter Sarah Maslin Nir. Great journalism that leads to real questions about your mani/pedi habit. The Cats of Disneyland: Read about the Cat Colony at the Mouse and the Disney fans who care for cats. Want more details? Check out the Disneyland Cats blog. Update on Maverick, the neighbor's dogPlus the Tuesday Trends: Snoopy on the comeback trail. Yeah!Find all of our shows at Apple Podcasts or on our complete Satellite Sisters audio archive here.

New track I released two days ago (https://popsicletheory.bandcamp.com/album/accelerating-universe) Very happy with the outcome :) 99% lsdj haha 2020 Creative Commons CC Attribution Noncommercial No Derivative Works (BY-NC-ND)

The universe was static, that was the credo of all scientists and philosophers until three decades into the twentieth century, when the expansion was discovered. https://www.gresham.ac.uk/lectures-and-events/the-accelerating-universeThree quarters of a century later, the notion of a simple expansion of the universe was found to be wrong: the universe is accelerating. One implication is that before 2000, we believed that our successors, billions of years hence would see an ever larger space of galaxies, more numerous than grains of sand on a vast beach. Today with our telescopes we can see billions of galaxies: in the far future there would be, we once believed, uncountable billions to study and even search for signs of life. But with the discovery of accelerating space, our horizon has shrunk immensely. The distant galaxies are racing away from us at ever faster velocities. In a hundred and fifty billion years time, our Milky Way will be the only galaxy left in the observable universe. This lecture will explore the origin of this paradigm shift in our cosmic horizon, and discuss the origin of the acceleration as a phenomenon that we call dark energy.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/lectures-and-events/the-accelerating-universeGresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 2,000 lectures free to access or download from the website.Website: http://www.gresham.ac.uk Twitter: http://twitter.com/GreshamCollege Facebook: https://www.facebook.com/greshamcollege Instagram: http://www.instagram.com/greshamcollege

Dr. Robert P. Kirshner Clowes Professor of Science, Harvard University The expanding universe was discovered at Mount Wilson almost 100 years ago. But there is something new! In the past 20 years, astronomers have found that cosmic expansion is speeding up, driven by a mysterious “dark energy” whose nature we do not understand. Dr. Kirshner, one of today”s preeminent astrophysicists, is the recipient of many prestigious awards, including the 2014 Breakthrough Prize in Fundamental Physics (sponsored by Google, among others), as well as the 2014 James Craig Watson Medal of the National Acad- emy of Sciences for “service to astronomy.” Partial funding for Carnegie Observatories' 2015 Astronomy Lecture Series was provided by The Kenneth T. and Eileen L. Norris Foundation. The lectures were hosted by A Noise Within (http://www.anoisewithin.org/). Video production by Neighbors Video Services (http://www.neighborsvideo.com).

If you experience any technical difficulties with this video or would like to make an accessibility-related request, please send a message to digicomm@uchicago.edu. A Wednesday Lunch at the Divinity School featuring Joshua Frieman, Director of the Dark Energy Survey and Professor of Astronomy and Astrophysics at the University of Chicago, speaking on "The Dark Energy Survey and the Mystery of the Accelerating Universe." The discovery that the universe is accelerating, not slowing down from the mass it contains, is the surprise that sets the initial research program of 21st Century cosmology. The Dark Energy Survey is a next generation sky survey aimed directly at understanding this mystery. Their quarry is the dark energy, the reasons the universe is accelerating.

In 1998, two teams traced back the expansion of the universe over billions of years and discovered that it was accelerating, a startling discovery that suggests that more than 70% of the cosmos is contained in a previously unknown form of matter, called Dark Energy. The 2011 Nobel Laureate for Physics, Brian Schmidt, leader of […]

Robert Kirshner, Clowes Professor of Science, Harvard University, delivered the inaugural Gruber Science Fellowship Lecture on 28 February 2012 in the Hall of Graduate Studies. The Gruber Science Fellowship Lectures bring renowned scientists to campus to speak about the current state of knowledge in their fields. All lectures are free and open to the public.

Saul Perlmutter. Supernova, Dark Energy and the Accelerating Universe with introduction by Dr Eng Lim Goh - Chief Technology Officer, SGI

Class begins with a review of the mysterious nature of dark matter, which accounts for three quarters of the universe. Different models of the universe are graphed. The nature, frequency, and duration of supernovae are then addressed. Professor Bailyn presents data from the Supernova Cosmology Project and pictures of supernovae taken by the Hubble Space Telescope. The discovery of dark energy is revisited and the density of dark energy is calculated. The Big Rip is presented as an alternative hypothesis for the fate of the universe.

Listen to the announcement of the 2011 Nobel Prize in Physics, to Saul Perlmutter, Brian Schmidt and Adam Riess, from the Royal Swedish Academy of Sciences. Following the formal announcement comes an explanation of the research, which tracked type Ia supernovae to discover that the expansion of the universe was accelerating, and a phone conversation with new Nobel laureate Brian Schmidt

You might have seen: BBC, "Nobel physics prize honours accelerating Universe find" Mar 04, 2011; http://www.bbc.co.uk/news/science-environment-15165371

Transcript: Standard cosmological models, where the universe is filled with matter and radiation, always have an expansion rate that slows down with time since the big bang, a deceleration. This is because gravity of all the matter in the universe acts to slow down the expansion rate, but in the late 1990s astronomers got a big surprise. Observations of distant supernovae indicated that the universe is currently in an acceleration phase. Here’s how the observation worked. Astronomers looked at distant Type Ia supernovae. These supernovae in binary systems indicate a situation where matter is spooned onto a white dwarf causing an explosion with a well regulated luminosity. These supernovae are excellent distance indicators. When observations with the Hubble Space Telescope and large ground based telescopes were used to look at the most distant supernovae, distances of about a gigaparsec or redshift of about a half, it was observed that their apparent brightness was twenty or thirty percent fainter than expected in a standard cosmological model. The implication was that the supernovae were further away than expected in a standard cosmological model, and the explanation was that the universe is accelerating placing them at a larger distance.

Class begins with a review of the mysterious nature of dark matter, which accounts for three quarters of the universe. Different models of the universe are graphed. The nature, frequency, and duration of supernovae are then addressed. Professor Bailyn presents data from the Supernova Cosmology Project and pictures of supernovae taken by the Hubble Space Telescope. The discovery of dark energy is revisited and the density of dark energy is calculated. The Big Rip is presented as an alternative hypothesis for the fate of the universe.

Dr. Jim Condon of NRAO chats about what we know and what we DON'T know about the universe.