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The Star Spot

The astronomy and space exploration podcast

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Episode 128: A Shocking Theory About the Multiverse, with Dan Falk

Feature Guest: Dan Falk What if everything we see in our universe is not all that there is. The concept of the multiverse has captured the imagination of both physicists and cosmologists, but for very different reasons. According to the many worlds interpretation of quantum mechanics, every quantum event triggers the creation of new parallel universes. Meanwhile many cosmologists studying the beginning of the universe have come to believe that inflation is an eternal process forever creating new universes. The quantum mechanical wave-function and cosmological inflation seem worlds apart. But what if these two dramatically different models were pointing to one and the same multiverse? In this second of our two part conversation, science reporter Dan Falk rejoins us here at The Star Spot to discuss this startling possibility. Current in Space Today Tony and Dave treat us to a special black hole double bill. First up, black holes were recently tested to determine if they really are every bit as exotic as we thought. And then, what happens to the supermassive black hole at the centres of merging galaxies? About Our Guest Dan Falk is an award winning science journalist and broadcaster. He’s been published very broadly, including in the Globe and Mail, the Toronto Star, The Walrus, Cosmos magazine, and New Scientist, and has contributed to CBC and TV Ontario science programming. Dan Falk is also the author of three books, including In Search of Time: Journeys Along a Curious Dimension, Universe on a T-Shirt: The Quest for the Theory of Everything, and The Science of Shakespeare: A New Look at the Playwright’s Universe. He co-hosts the BookLab podcast


10 Jul 2017

Rank #1

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Episode 146: Supernovae and the Evolution of Life on Earth, with Brian Thomas

Feature Guest: Brian Thomas We have this impression of our planet as isolated from the rest of the universe, our lives cut off from the drama unfolding elsewhere in our galaxy. But what if the course of life’s evolution on Earth was intimately connected to events well beyond our solar system. It now seems likely that supernovae hundreds of light-years away have profoundly affected our history and may even account for climatic changes just as our species was emerging. Today we’re joined here at The Star Spot by astrophysicist Brian Thomas to explore this fascinating discovery. About Our Guest Brian Thomas is Professor in the Department of Physics and Astronomy at Washburn University where he leads the Washburn Astrobiophysics research group. His research focuses on the role of high energy astronomical events, in particular supernova and gamma ray bursts, on the atmosphere and biosphere of Earth. He is the principal investigator on a 3-year NASA grant to explore the terrestrial impacts of nearby supernovae.


28 May 2018

Rank #2

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Episode 180: Wormholes through Space and Time, with John Cramer

Feature Guest: John G. Cramer They are the stuff of science fiction, but wormholes are also the subject of intense scientific debate. Can wormholes provide a mechanism for faster than light travel through space and, even more intriguing, do they open the door to travel through time? Today we’re joined here at The Star Spot by one of the world’s foremost authorities on wormholes, Professor John G. Cramer, to share results from his thought experiments on wormholes and his laboratory experiments aimed at changing the past.   Current in Space Jeff starts us off with a bang... the largest bang we've ever seen in the universe. Then Camilla unveils the name of the next generation Mars rover. And Anshool ponders the chances of finding life around a black hole. Finally Amelia and Priyanka pay tribute to pioneering mathematician Katherine Johnson. About Our Guest John G Cramer is Professor Emeritus of Physics at the University of Washington. He has made contributions to the Relativistic Heavy Ion Collider project at Brookhaven National Laboratory and the particle accelerator at CERN. He is known for his experiments in quantum retrocausality, which explore the possibility of effects preceding causes. Cramer is a regular guest on the Science Channel and NPR, and he has authored multiple books of hard science fiction.


6 Apr 2020

Rank #3

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Episode 172: The Hubble Not-So Constant

Feature Guest: Sherry Suyu The Hubble constant, which measures the expansion rate of the cosmos, may not be a constant after all, and if that’s true it means we’re missing something big in our understanding of the universe. Today we’re joined here at The Star Spot by Sherry Suyu, who leads the aptly named H0LiCOW project which uses the phenomenon of gravitationally lensed quasars to measure the expansion rate of the universe. Current in Space Tony reports on a fascinating yet circumstantial finding that suggests a world literally on fire is out there, and it may excite fans of the Star Wars franchise. Then Amelia and Tony break down a study hinting at the existence of exoplanets that may be even more habitable than Earth!  About Our Guest Sherry Suyu is a Max Planck Research Group Leader at the Max Planck Institute for Astrophysics, an Assistant Professor at the Technical University of Munich, and a Visiting Scholar at the Academia Sinica Institute of Astronomy and Astrophysics.


16 Sep 2019

Rank #4

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Episode 159: Living on the Edge: Are We On the Boundary of an Expanding Universe?, with Ulf Danielsson

Feature Guest: Ulf Danielsson Our universe is big. But what if all of this was just one of an unimaginably large number of bubble universes. That’s the proposal by a group of scientists who recently introduced a new model for the universe which for the first time links string theory with dark energy and higher dimensions. But how does it compare to rival multiverse theories? Today we’re joined here at The Star Spot by physicist Ulf Danielsson to explain how his model, uniquely, provides for universes that far from being isolated might actually come into contact. Current in Space About Our Guest Ulf Danielsson is a Professor in the Department of Physics and Astronomy at Uppsala University in Sweden. He is the author of four books and engages frequently in public science education on TV and radio. He is a member of the Royal Swedish Academy of Science and a member of the Nobel Committee for Physics.


21 Jan 2019

Rank #5

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Episode 142: Jupiter Transformed, with Scott Bolton

Feature Guest: Scott Bolton It’s our cosmic backyard, and yet our own solar system is still full of surprises. Now it turns out we were “totally wrong” when it comes to just about everything we thought we knew about Jupiter. That’s not me speaking, it’s Scott Bolton, principal investigator for the NASA Juno mission to Jupiter. From its magnetic field and atmosphere down to its very core, Jupiter is being rediscovered and transformed. Today we’re joined here at The Star Spot by Dr. Bolton to discuss the rewriting of our textbook on the solar system’s biggest world. Current in Space We've discovered a new family of extrasolar planets, and they're in a galaxy far, far away! Dave provides a trailer for the next episode of The Star Spot. About Our Guest Scott Bolton is the Director of the Space Science and Engineering Division at the Southwest Research Institute and Principal Investigator of NASA's Juno mission to Jupiter. In his 24 year career with NASA's Jet Propulsion Laboratory, he has worked on many of its leading missions, including Cassini, Galileo, Voyager and Magellan He presently leads an international research group focused on modeling Jupiter and Saturn's radiation belts. He is an author of over 60 scientific papers. He has received over twenty NASA Group Achievement Awards including the NASA Exceptional Achievement Medal and the NASA Outstanding Leadership Medal.


19 Feb 2018

Rank #6

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Episode 173: Discovering an Ancient Oasis, with William Rapin

Feature Guest: William Rapin Welcome to Sutton Island, here in the middle of a beautiful and rugged landscape consisting of shallow lakes filled with salts and minerals. It’s a common vista on this world, and while the world in question is not our home, ancient Mars may well have been someone’s home. Today we’re joined here at The Star Spot by William Rapin, with reports from the latest discoveries of the Mars Curiosity rover and why one of the Principal Investigators of NASA’s Viking mission is now convinced we found life on Mars back in the 1970s, Current in Space Amelia and Tony share exciting news: the most powerful radio dish telescope in the world will soon be ready for widespread astronomical use! Then Joseph excites even more with a stunning discovery: the presence of water in the atmosphere of an exoplanet, making it the most prominent target yet in the search for habitable worlds. And once again on the subject of habitable worlds, in her debut, Dunja wonders if the size of planets matters to their potential for being habitable. Finally, Amelia and Priyanka report on a remarkable new technique for estimating the mass of black holes! About Our Guest William Rapin is postdoctoral scholar in the Division of Geological and Planetary Sciences at Caltech. His research investigates the surface geochemistry of planets to improve our understanding of their origin, evolution, and habitability. Previously he worked as Research Assistant at NASA Ames Research Centre and was Assistant System Engineer with the Centre National d'Études Spatiales


11 Nov 2019

Rank #7

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Episode 144: A Rough Upbringing: The Discovery of Stars in the Galaxy’s Core, with Farhad Yusef-Zadeh

Feature Guest: Farhad Yusef-ZadehThe gravity, radiation and tidal forces at the very core of the Milky Way is kind of intense. That’s why astronomers have long doubted the possibility of star formation in such a hostile environment. And then everything changed with the discovery last fall of 11 sun-like stars living closer to the supermassive black hole at the centre of our galaxy then the distance between our sun and its closest neighbour. What does this breakthrough mean for our understanding of star formation and the possibility of life in what we once imagined were impossibly extreme environments? Today we’re joined here at The Star Spot by the discovery team’s leader Farhad Yusef-zadeh. Current in Space On behalf of The Star Spot, Tony says "Thank you, Stephen." About Our Guest Farhad Yusef-Zadeh received his undergraduate degree from the State University of New York at STony Brook then performed his PhD work at Columbia University. He worked as a National Research Council postdoctoral fellow at NASA's Goddard Space Flight Center before joining the Department of Physics and Astronomy at Northwestern University. He enjoys performing public lectures on the history of astronomy, science and pseudoscience and how science affects our lives.


2 Apr 2018

Rank #8

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Episode 121: Scary Resolutions to the Fermi Paradox, with David Kipping

Feature Guest: David Kipping The 14th annual Expanding Canada’s Frontiers symposium was hosted on January 27th, 2017 by the Astronomy and Space Exploration Society, a student group based at the University of Toronto. This year’s unique theme was “What Ifs: Is the Impossible, Possible?”! And now in a special three episode series, we’re joined here at The Star Spot by the event’s keynote speakers as we explore three provocative questions at the cutting edge of astronomy. We are either the first civilization in the galaxy or we’re about to meet our doom. Today Professor David Kipping joins us here at The Star Spot to offer his startling - and troubling - resolutions to the famous Fermi Paradox. Current in Space There is a weirdness at the heart of the Andromeda Galaxy, and Tony shares some exotic explanations. About Our Guest David Kipping is Professor of Astrophysics at Columbia University. He is well known for his work developing the latest exoplanet detection techniques, and is a pioneer in the field of exo-moonology. He is the Principal Investigator (PI) of The Hunt for Exomoons with Kepler Project.


20 Mar 2017

Rank #9

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Episode 100: The Monster at the Centre of our Galaxy, with Feryal Özel

Celebrating 100 Episodes with you at The StarSpot! Thank you for joining here at The Star Spot for our special100th episode. I want to take a moment to thank the 100 absolutelystellar guests that have joined us on the show over the last 4years. You have educated and inspired people of all ages with yourinsight and enthusiasm. Thank you to our listeners for helping usgrow our production and for your thoughtful suggestions andterrific online discussion. And of course, a very special thank youto the amazing team of volunteers who make our project possible. Ithas been a great experience working with each of you and I lookforward to what the next 4 years will bring. Feature Guest: Feryal Özel As we speak astronomers are busy building the world’s biggesttelescope. And when it becomes operational one year from now theglobe-spanning Event Horizon Telescope will be aimed at thesupermassive black hole at the centre of our galaxy, taking thefirst ever portrait of this hungry beast lying at the very core ofthe Milky Way. To help us understand how studying the shadow ofsupermassive black holes will provide the most rigorous test yet inour understanding of gravity, today we’re joined at The Star Spotby The Event Horizon Telescope’s Professor Feryal Özel The Star Spot is Now on the Radio! The The Star Spot podcast is now The Star Spot podcast and radioshow. That’s right. Your favourite astronomy program is nowtravelling through space, specifically the 1280AM frequency. Ourbroadcaster, CJRU The Scope at Ryerson, is now available on theradio dial, which means you can join us at The Star Spot at 1280AMevery Sunday 8PM and Tuesday 6PM Eastern Time. Current in Space Science fiction fans are familiar with a cloaking device thathides alien ships from an enemy. Now Tony explains how a real lifecloaking device could help us hide our entire civilization fromprying eyes. And Anuj wonders if Saturn's moons may be younger thanwe thought - and what that means for our exploration of the solarsystem.  About Our Guest Feryal Özel is Professor of Astronomy and Astrophysics at theUniversity of Arizona. She received her Masters from the Niels BorhInstitute and her PhD from Harvard University, before working as aNASA Hubble Postdoctoral Fellow at the Institute for Advanced Studyat Princeton. Her research focuses on neutron stars and blackholes, and the relationship of black holes and galaxies in theearly universe. Professor Özel is a Fellow of the American PhysicalSociety and a member of the Science Academy of Turkey.


2 May 2016

Rank #10

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Episode 174: Fuzzy Dark Matter, with Lachlan Lancaster

Feature Guest: Lachlan Lancaster Quantum mechanics is strange. Until recently we could comfort ourselves with the belief that its odd properties were safely confined to the world of the microscopic. But what if quantum mechanical effects were suddenly magnified to cosmological scales. Imagine the quantum mechanical interference pattern spread across clusters of galaxies. That’s a possibility, according to a new theory of dark matter known as fuzzy dark matter, which imagines dark matter particles as being incredibly minuscule but with astrologically large wavelengths. How can we prove whether this fascinating new theory is correct? Do these ultra small particles give us clues to mysterious string theory? And what does all this mean about the past, present and future of the universe? Today we’re joined here at The Star Spot by Lachlan Lancaster, co-author of a new paper that sheds light on these questions. Current in Space While NASA's New Horizons spacecraft transformed Pluto from a speck to a world before speeding past, Joseph gets us excited for a proposed second mission that would orbit the dwarf planet and more! Then Dunja asks if a certain particle may be changing the very fabric of the Universe itself! And Amelia and Tony take us back in time to the early Universe with a baffling discovery: the first stars may have formed faster than previously thought.  About Our Guest Dr. Lachlan Lancaster is an astrophysics PhD student at Princeton University studying the intersection of Galactic Dynamics and Cosmology. He receiverd his Masters from Cambridge University after conducting research at the University of California Davis.


25 Nov 2019

Rank #11

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Episode 141: The Mysterious Origin of Superpowerful Radio Blasts, with Jason Hessels

Feature Guest: Jason Hessels The one thing we thought we knew about fast radio blasts was that these mysterious one-off phenomena must be associated with some of the most cataclysmic events in the universe. Then everything changed with last month’s announcement of the first ever detection of a source of repeating fast radio bursts. Today we’re joined at The Star Spot by co-discover Jason Hessels to rule on an important question: are scientists back to the drawing board or did they just achieve a breakthrough in our efforts to unlock this puzzle. Current in Space Europa is a tantalizing destination for exploration, but Dave worries that if we visit we might quickly find ourselves on thin ice. Then Maya reports on a windy conundrum surrounding hot Jupiters. And Tony brings new insights into the most powerful explosions in our Universe. Care to make your very own gamma ray burst? About Our Guest Jason Hessels is an astronomer at the Netherlands Institute for Radio Astronomy. He received his PhD from McGill University where he was the recipient of an NSERC Doctoral Fellowship. His research interests include pulsars and neutron stars, globular clusters and radio transients. His hobbies include hiking, camping, sailing and guitar.


5 Feb 2018

Rank #12

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Episode 118: The Sun: Our Local Mystery, with Terry Kucera

Feature Guest: Terry Kucera We see it there in the sky every day of our lives. And yet our own local star, the sun, is still in many ways a mystery. What causes the solar cycle? How does the sun’s outer atmosphere, the corona, reach a staggering temperature of over 1 million degrees. And could a really big solar storm turn back the clock on our technology and civilization? You’ll never look at the sun the same way again after we’re joined here The Star Spot by NASA astrophysicist Dr. Terry Kucera Current in Space As we focus today's feature interview on the Sun, Tony reminds us not to forget about the moon, and he competes for our attention with a startling new conjecture that rivals the mainstream theory for the origin of our close companion. About Our Guest Terry  Kucera is an astrophysicist at the NASA Goddard Space Flight Center’s Solar Physics Laboratory. She is Deputy Project Scientist for STEREO, the Solar TErrestrial RElations Observatory. STEREO is the third mission in NASA’s Solar Terrestrial Probes program and for the last decade has been revolutionizing our understanding of the Earth-sun system. Dr. Kucera has a PhD from the University of Colorado, Boulder.


6 Feb 2017

Rank #13

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Episode 101: The Great Terraforming Mars Debate - Part 1: The Science, with Paul Delaney

Feature Guest: Paul Delaney Ever consider moving to Mars? The Star Spot recently did. Along with the University of Toronto Astronomy and Space Exploration Society, we recently co-hosted a panel event exploring one of the most fascinating questions in which science meets science fiction. Can we terraform Mars to make it habitable? And if we can, should we? We were joined by a 5 member panel of experts, representing a wide range of backgrounds in order to approach the issue from all angles: physics, astronomy, philosophy, ethics, commerce and politics. Now, over the next 4 episodes I’ll be joined at The Star Spot by each of our guests from that event. We start with the science. For the debate over terraforming Mars depends in large part on the attributes of the red planet, on whether it harbours life, and on what technologies are possible to make the planet suitable for a human settlement and even civilization. To set the scene and to share his position in this great debate today we're joined at The Star Spot by planetary science Professor Paul Delaney. The Star Spot is Now on the Radio! The The Star Spot podcast is now The Star Spot podcast and radio show. That’s right. Your favourite astronomy program is now travelling through space, specifically the 1280AM frequency. Our broadcaster, CJRU The Scope at Ryerson, is now available on the radio dial, which means you can join us at The Star Spot at 1280AM every Sunday 8PM and Tuesday 6PM Eastern Time. Current in Space Scientists are getting closer to discovering what dark matter is made of... by ruling out one more possible candidate, explains Anuj. Then Dave announces Kepler has suddenly doubled the number of confirmed exoplanets in our galaxy. And with new research into the overview effect, Tony wonders if the life changing experience enjoyed by astronauts can be brought down to Earth. About Our Guest Paul Delaney is Professor of Physics and Astronomy at York University. He received his undergraduate degree from the Australian National University in Canberra, Australia, and his graduate degree in astronomy from the University of Victoria in Canada. Professor Delaney oversees the York University campus observatory and its public outreach programs, and he appears regularly on York Universe, one of The Star Spot’s affiliated podcasts.


16 May 2016

Rank #14

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Episode 164: Jupiter's Ancient Odyssey, with Simona Pirani

Feature Guest: Simona Pirani The planet Jupiter occupies a position today that is far from its home 4.5 billion years ago, a destination resulting from a primeval migration that started way out around the current location of Uranus. Like the god for which it was named, Jupiter enjoys the company of thousands of followers, the so-called trojan asteroids, which have remained by its side all these years, and they now offer a window into the murky origins of the gas giant. Today we’re joined here at The Star Spot by Simona Pirani, lead author of a new study that provides the first ever proof that Jupiter - and perhaps most planets - undertake ancient odysseys around the solar system. Current in Space We have bad news and good news. Simon puts a bit of a damper on things, as the first manned mission to Mars will have to wait longer than initially projected. Then Amelia and Samantha explain a crazy new finding: a pulsar that seems to be speeding through space! And we save the good news for last, as Tony shares new research suggesting that Earth-like planets orbiting red dwarf stars, which have been deduced as unlikely to host life, may actually be habitable after all. About Our Guest Simona Pirani is a doctoral student in the Department of Astronomy and Theoretical Physics at Lund University in Sweden. She is the lead author on a major new study into ancient planetary migrations.


29 Apr 2019

Rank #15

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Episode 175: The Truth is Out There (at the University of Manitoba)

Feature Guest: Shelley Sweeney The University of Manitoba has just acquired the largest collection of UFO related material. Prominent Canadian ufologist Christ Rutkowski has made a donation of over 30,000 documents, photos, artifacts and government reports, including files relating to the famous 1967 Falcon Lake Incident, involving a purported physical contact with a mysterious craft. Whether you’re intrigued by the phenomenon of belief or you believe in the phenomenon, the extraordinary human effort to address the UFO question is worth our attention, argues Shelley Sweeney, Head of Archives & Special Collections at the University of Manitoba, who joins us here at The Star Spot. Current in Space In her final broadcast, Dunja literally goes out with a bang as bizarre eruptions of particles have been seen on the asteroid Bennu by orbiting spacecraft OSIRIS-REx.  Then Joseph looks back at our own planet, with a remarkable discovery: a new map of Antarctica that could forecast the future impact of climate change.  In his debut, Anshool describes a star careening through space, shot out by the supermassive black hole at the center of the Milky Way! In other supermassive black hole news, Amelia and Priyanka share a finding that shall surely change the way we understand how huge galaxies form: a galaxy with three supermassive black holes! Finally Tony breaks down two new images of the first interstellar comet ever observed by humanity! About Our Guest Shelley Sweeney is Head of Archives & Special Collections at the University of Manitoba. She is a former Secretary of the international Academy of Certified Archivists and co-authored the code of ethics for the Canadian archival profession.


23 Dec 2019

Rank #16

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Episode 119: From Knots to Donuts: Exotic Possibilities for the Shape of Our Universe, with Paul Sutter

Feature Guest: Paul Sutter Imagine travelling a very long way in space only to return just where you started, but upside down.  Or consider living in an exotic donut-shaped universe, or one with far more than our usual three dimensions. The amazing thing is that we very well may. Today we’re joined at The Star Spot by Paul Sutter who will explain the crazy possibilities for the shape of our universe.   Current in Space Imagine the view from an Earth-size object that spun on its axis once every minute? According to Dave, that’s what you get with a recently discovered new object, a mysterious white dwarf pulsar. Then Anuj explains why the mass beaching of whales is not only undeniably tragic, but critically important to all inhabitants of planet Earth. And from death on the beach to death from above. Tony shares the terrifying aftermath of a devastating asteroid collision! About Our Guest Paul Sutter is an astrophysicist at The Ohio State University and the chief scientist at the Center for Science and Industry in Columbus, Ohio. Sutter hosts the show Ask a Spaceman where he welcomes your questions on the nature of space and time.


20 Feb 2017

Rank #17

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Episode 150: At the Birth of Our First Newborn Planet, with André Müller

Featured Guest: André Müller Astronomers have taken their first image of an infant planet still developing around a newly formed star. Today we’re joined here at The Star Spot by André Müller, whose team is busy studying this baby world and has already discovered evidence of an atmosphere and possibly even moons, astounding knowledge of such a tiny speck 370 light years from Earth. On a personal note, I want to dedicate this special 150th episode of The Star Spot to my amazing wife Denise and to our own newborn wonder, Lara Fong Trottier. Thank you for being the stars in my universe. Current in Space What secrets are hiding in the darkness on the moon? Tony sheds some light. And have you ever wondered just how we arrive at the mass of those thousands of extrasolar planets astronomers are busy studying? About Our Guest André Müller is a postdoctoral researcher at the Max Planck Institute for Astronomy in Heidelberg, Germany. He has also conducted research at the European Southern Observatory in Chile. His interests revolve around young stellar objects and extrasolar planets.


3 Sep 2018

Rank #18

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Episode 94: What Alien Intelligence Means for Humanity, with Don Lincoln

Feature Guest: Don Lincoln Humanoid... grey in colour… almond shaped eyes. You all know exactly what I’m describing, but have you ever wondered just how the public’s perception of aliens came to be? Today we’re joined at The Star Spot by Professor Don Lincoln, renowned particle physicist and author of Alien Universe: Extraterrestrial Life in Our Minds and in the Cosmos. Does our conversation and beliefs about aliens tell us more about us than them, and how might first contact with an alien intelligence change everything.Current in Space Star Trek-like alien interactions might be possible after all... if you live at the centre of a globular cluster. Then, we look at a conspiracy theory that's no longer so out there, because Planet X is back, with a vengeance. And gardening arrives at the ISS, meaning astronauts may eventually enjoy the fruits of their labour. Extremophiles are also heading to the space station, as we test their habitability in Mars-like conditions. About Our Guest Don Lincoln is a senior physicist at Fermilab, America’s flagship particle physics laboratory, and adjunct Professor of Physics at the University of Notre Dame. He is co-discover of the top quark and was part of the team that discovered the Higgs boson in 2012. Professor Lincoln is the author of several public science books, including Understanding the Universe: From Quarks to the Cosmos, The Large Hadron Collider: The Extraordinary Story of the Higgs Boson and Other Things That Will Blow Your Mind and Alien Universe: Extraterrestrials in our Minds and in the Cosmos.


8 Feb 2016

Rank #19

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Episode 88: Two's Company: From Binary Stars to Binary Supermassive Black Holes, with Pawel Artymowicz

Feature Guest: Pawel Artymowicz Star Wars fans will be familiar with the planet Tatooine and its two suns. But as it turns out the majority of stars in the Milky Way galaxy live with a companion. And that’s led scientists to study how multiple star systems form and develop, and whether they can host habitable planets. To help us understand the behaviour of binary star system and the even more fascinating domain of supermassive binary black holes, the results of merging galaxies, today we're joined at The Star Spot by Pawel Artymowicz Current in Space Anuj shares new evidence that has pushed back the origin of life by hundreds of millions of years. Tony explains what measures scientists are using to predict the likelihood that newly discovered exoplanets are in fact habitable. Dave updates us on NASA's big water on Mars discovery with new analysis which is leading us to believe the red planet was much warmer and wetter than we had thought. And The Star Spot goes to the movies... off to Mars to be exact as Denise reviews The Martian. About Our Guest Pawel Artymowicz is Professor of Physics and Astrophysics at the University of Toronto. He received his Undergraduate degree in Astronomy from the University of Warsaw and his PhD from the Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences. Prior to joining the faculty at the University of Toronto he was Associate Professor of Astronomy at the University of Stockholm in Sweden. He was the most cited astronomer in Stockholm from 1994 through to 2004. He has also worked as a Research Assistant at the Space Science Telescope Institute and the Lick Observatory in Santa Cruz, California.


2 Nov 2015

Rank #20