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    Astronomy

    Universe Today Podcast

    Public feed with [Space Bites+], [Q&A+], [Interview+] and other episodes. Free for everyone.

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    Copyright: Β© Copyright Fraser Cain

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    Latest Episodes:
    807: True Shape of the Universe, Asteroid Mining, Alien Astronomers | Q&A 180 Apr 19, 2022
    Show notes

    In this week's live Questions and Answers show, I provide the exact number of alien worlds that could detect the Earth, are we made of heavier elements made in other galaxies, will lasers remain perfectly parallel in space? And more...

    00:00 Start
    01:15 [Tatooine] Could any aliens see us by the transit/radial velocity method?
    04:05 [Corusant] Are we made from atoms made in other galaxies?
    07:23 [Hoth] Will lasers remain parallel in space?
    09:32 [Naboo] Is the Universe just a coincidence?
    10:16 [Kamino] Are there too many satellites?
    13:30 [Bespin] What do I think of ISRO?
    15:31 [Mustafar] Will we ever reach the speed of light?
    16:47 [Alderaan] Do I find the Great Filter convincing?
    18:20 [Dagobah] How can we avoid planetary contamination?
    20:53 [Yarvin] Does Pluto have an atmosphere?
    22:22 [Mandalore] When will astronauts drop their poop on Mars?
    22:38 [Geonosis] Do I see Starlink trails?
    24:46 [Corellia] How big can objects get?
    26:08 [Crait] Could there be space science startups?
    27:19 [Endor] What will low gravity do to Martian colonists?
    30:37 [Exegol] Why don't astronauts feel centripetal force?
    31:48 [Jedha] Was space always a vacuum?
    33:38 [Lothal] When will there be asteroid mining?
    35:36 [Mortis] How do supermassive black holes form?

    Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here.

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    806: $500 000 for Moon Dust, Boson Breaking Physics, New Approach to Space Tourism | News Digest e1 Apr 17, 2022
    Show notes

    Perseverance found its parachute, JWST cooling down its experiments, Standard Model once again in danger, Space Force releasing data to scientists, yet another approach for expensive space tourism and more top news stories of this week.

    00:00 Intro
    00:52 Space Force is Releasing Decades of Tracking Data on a Thousand Bright Meteor Fireballs
    https://www.universetoday.com/155380/space-force-is-releasing-decades-of-tracking-data-on-a-thousand-bright-meteor-fireballs/
    02:18 An overweight boson might be threatening the Standard Model
    https://www.universetoday.com/155396/weird-measurement-of-w-boson-doesnt-match-standard-model-of-physics/
    Interview with Dr Paul Sutter https://youtu.be/9ZUd9SqOJBQ
    05:20 James Webb Almost Cooled Down Enough
    https://www.universetoday.com/155453/brrr-webbs-miri-has-reached-6-4-kelvin-just-a-few-degrees-above-absolute-zero/
    07:02 Yet another approach to high altitude tourism
    https://www.universetoday.com/155400/get-an-inside-look-at-space-perspectives-stratospheric-lounge-with-bar/
    09:51 Join our Discord Server!
    https://discord.gg/bRxr4JTNqh
    10:00 Martian Astronauts Will Create Fuel by Having a Shower
    https://www.universetoday.com/155360/martian-astronauts-will-create-fuel-by-having-a-shower/
    11:21 Perseverance rover spotted its parachute that helped it descend on Mars
    https://www.universetoday.com/155384/perseverance-finally-spots-its-own-parachute-on-the-surface-of-mars/
    12:14 Five Rover Teams Chosen to Help Explore the Moon’s South Pole
    https://www.universetoday.com/155357/five-rover-teams-chosen-to-help-explore-the-moons-south-pole/
    14:07 Support us on Patreon
    https://patreon.com/universetoday
    14:38 Apollo 11 Moon Dust Sells at Auction for a Cool Half Million
    https://www.universetoday.com/155449/apollo-11-moon-dust-sells-at-auction-for-a-cool-half-million/
    16:26 Outro

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    805: W Boson Breaking the Standard Model with Dr. Paul Sutter Apr 16, 2022
    Show notes

    Particle physicists have announced an exciting discovery about the W Boson particle that challenges the Standard Model of Physics. To help me understand what was discovered and what it means for physics, I've invited Dr. Paul Sutter back to explain it. Paul is a fantastic science communicator and has a PhD in particle physics. The perfect person to help us make sense of this.

    https://www.youtube.com/channel/UCBr7XOxxQyBHEwqkhoci7vw

    Timecodes:
    Start 00:00:00
    Edge of Knowledge 00:01:26
    What is the W Boson? 00:03:14
    How is the mass of the W boson measured? 00:07:32
    What was the result of the experiment? 00:09:14
    What explains the result? 00:11:37
    What comes next? 00:19:35
    Follow Paul's work 00:22:55

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    Astronomy Cast: Award-winning, long-running deep dive into space and astronomy with Fraser and Dr. Pamela Gay.
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    Support Universe Today Podcast


    804: What Is Dark Matter Made Of with Dr. Surjeet Rajendran Apr 15, 2022
    Show notes

    My guest today is Dr. Surjeet Rajendran, a physics professor at Johns Hopkins University. In addition to his teaching, Dr. Rajendran's research is in theoretical physics, with a strong focus on what comes after the standard model. What could dark matter be? How can gravity be merged with quantum mechanics?

    https://physics-astronomy.jhu.edu/directory/rajendran/

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    Subscribe Free: https://universetoday.com/newsletter

    πŸš€ OTHER PODCASTS:
    ════════════════════════════════════
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    YouTube: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

    Astronomy Cast: Award-winning, long-running deep dive into space and astronomy with Fraser and Dr. Pamela Gay.
    RSS: https://astronomycast.libsyn.com/rss/
    iTunes: https://podcasts.apple.com/ca/podcast/astronomy-cast/id191636169?mt=2
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    You are free to use my work for any purpose you like, just mention me as the source and link back to this video.

    Support Universe Today Podcast


    803: ILLEGAL Moon Residents, Space Power Plants, Center of the Universe | Q&A 179 Apr 12, 2022
    Show notes

    In this week's questions show, I explain how other planets can have geostationary orbits, if sending tardigrades to the Moon is a violation of the Outerspace Treaty, and why everything orbiting the Sun is in perfect balance.

    Here's a link to our Discord server: https://discord.gg/3nk8kAARUm

    00:00 Start
    00:53 Does Venus have a geostationary orbit?
    02:34 Is sending tardigrades to the Moon violate the Outerspace Treaty?
    06:30 Why is everything in stable orbit around the Sun?
    08:50 Is there a telescope on the ISS?
    10:33 How does the solar maximum work?
    13:05 Does space solar power make sense?
    15:40 Do rockets have to go into orbit around the Earth first?
    17:15 When will a microscope go to Mars?
    19:57 Could gravitational lensing let us see beyond the observable Universe?
    21:53 Where will we see the surface of other worlds?
    24:19 Could you go faster to blue shift light?
    26:47 Do nuclear rockets need fuel?
    28:03 Does time travel slower at the centre of the Universe?
    29:49 Can black holes go supernova?

    Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here.

    πŸš€ OUR WEBSITE:
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    https://www.universetoday.com/

    πŸš€ PODCAST LINKS:
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    iTunes: https://universetoday.com/itunes
    Spotify: https://universetoday.com/spotify

    πŸš€ EMAIL NEWSLETTER:
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    Read by 50,000 people every Friday. Written by Fraser. No ads.
    Subscribe Free: https://universetoday.com/newsletter

    πŸš€ OTHER PODCASTS:
    ════════════════════════════════════
    Weekly Space Hangout: Weekly news roundup with Fraser, special guests, and other space journalists.

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    iTunes: https://podcasts.apple.com/ca/podcast/weekly-space-hangout-audio/id836926769
    YouTube: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

    Astronomy Cast: Award-winning, long-running deep dive into space and astronomy with Fraser and Dr. Pamela Gay.
    RSS: https://astronomycast.libsyn.com/rss/
    iTunes: https://podcasts.apple.com/ca/podcast/astronomy-cast/id191636169?mt=2
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    πŸš€ LICENSE:
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    You are free to use my work for any purpose you like, just mention me as the source and link back to this video.

    Support Universe Today Podcast


    802: Directly Imaging Exoplanets with Dr. Thayne Currie Apr 12, 2022
    Show notes

    My guest today is Dr. Thayne Currie, an astrophysicist at NASA-Ames Research Center and the Subaru Telescope. Dr. Currie was part of a team that directly imaged a newly-forming planet, providing evidence of another way large planets can form, and could have formed here in the Solar System.

    https://subarutelescope.org/staff/currie/

    πŸš€ OUR WEBSITE:
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    Read by 50,000 people every Friday. Written by Fraser. No ads.
    Subscribe Free: https://universetoday.com/newsletter

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    ════════════════════════════════════
    Weekly Space Hangout: Weekly news roundup with Fraser, special guests, and other space journalists.

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    Astronomy Cast: Award-winning, long-running deep dive into space and astronomy with Fraser and Dr. Pamela Gay.
    RSS: https://astronomycast.libsyn.com/rss/
    iTunes: https://podcasts.apple.com/ca/podcast/astronomy-cast/id191636169?mt=2
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    800: Why the Universe Is Silent with Dr. Robin Hanson Apr 09, 2022
    Show notes

    My guest today is Dr. Robin Hanson, an associate professor of economics at George Mason University and a research associate at the Future of Humanity Institute of Oxford University. Dr. Hanson is famous for writing a paper describing the Great Filter, a theory that explains why we don't see aliens across the Universe.

    https://www.overcomingbias.com/

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    801: Starship Updates and Mars City Perspectives with Chris Prophet Apr 09, 2022
    Show notes

    My guest today is Chris Prophet, a freelance writer who has been covering the rise of SpaceX. He has written several books, including SpaceX from the Ground Up. His new book is called SpaceX Evolution and explains some of the company's long-term strategies to create a sustainable human civilization on Mars and beyond.

    https://www.goodreads.com/author/show/6442069.Chris_Prophet

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    Astronomy Cast: Award-winning, long-running deep dive into space and astronomy with Fraser and Dr. Pamela Gay.
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    799: Navigation in Space, Sizes of Black Holes and Planet 9 | Q&A 178 Apr 05, 2022
    Show notes

    In this week's live Questions and Answers show, I explain how big black holes are, what coordinate system astronomers use to map objects in the sky, and what could have collapsed clouds of hydrogen to form the first stars?

    00:00 Start
    00:42 How big are black holes?
    03:15 What coordinate system do astronomers use to map objects in space?
    06:50 What created the first stars?
    08:19 If Planet 9 is a black hole, how could we detect it?
    10:10 How do gamma rays escape the gravity of a black hole?
    11:04 Any alternative theories to the Big Bang that I find convincing?
    14:51 Where is Starman right now?
    15:44 How do we know the shape of the Milky Way?
    18:50 How far is James Webb in light-seconds?
    19:45 Are filaments and dark matter related?
    21:24 How do orbits become and stay stable?
    24:11 How dangerous is the Universe to life?
    27:39 What do I think of the Dark Forest theory?
    29:25 Are rubble pile asteroids dead comets?
    30:52 Are some galaxies more habitable?
    32:03 Could a Dyson Sphere stay inflated by the Solar Wind?

    Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here.

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    YouTube: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

    Astronomy Cast: Award-winning, long-running deep dive into space and astronomy with Fraser and Dr. Pamela Gay.
    RSS: https://astronomycast.libsyn.com/rss/
    iTunes: https://podcasts.apple.com/ca/podcast/astronomy-cast/id191636169?mt=2
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    You are free to use my work for any purpose you like, just mention me as the source and link back to this video.

    Support Universe Today Podcast


    798: Limits of Kardashev Scale, Artificial Stars, Can We Touch Jupiter | Q&A 177 Apr 01, 2022
    Show notes

    In this week's questions and answers show, I answer the question: could we build a star? How far will humans realistically explore within the Solar System? Is there any way we can escape the heat death of the Universe?

    00:00 Start
    01:03 Could we create a new star?
    04:17 How far will humans explore in the Solar System?
    08:59 Can we escape the heat death of the Universe?
    13:29 Where is the surface of Jupiter?
    15:53 Can a rocket escape Venus?
    18:50 Will we find life in the Solar System?
    19:45 Why do we see those spikes in the James Webb image?
    23:52 Could we communicate back out of a black hole?
    24:57 Could we use laser sails within the Solar System?
    27:09 Will humans really survive more than a few years?
    29:52 Can Webb handle space radiation?
    32:02 Are some of the first stars still around?

    Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here.

    πŸš€ OUR WEBSITE:
    ════════════════════════════════════
    https://www.universetoday.com/

    πŸš€ PODCAST LINKS:
    ════════════════════════════════════
    RSS: https://universetoday.com/audio
    iTunes: https://universetoday.com/itunes
    Spotify: https://universetoday.com/spotify

    πŸš€ EMAIL NEWSLETTER:
    ════════════════════════════════════
    Read by 50,000 people every Friday. Written by Fraser. No ads.
    Subscribe Free: https://universetoday.com/newsletter

    πŸš€ OTHER PODCASTS:
    ════════════════════════════════════
    Weekly Space Hangout: Weekly news roundup with Fraser, special guests, and other space journalists.

    RSS: https://www.universetoday.com/feed/wshaudio/
    iTunes: https://podcasts.apple.com/ca/podcast/weekly-space-hangout-audio/id836926769
    YouTube: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

    Astronomy Cast: Award-winning, long-running deep dive into space and astronomy with Fraser and Dr. Pamela Gay.
    RSS: https://astronomycast.libsyn.com/rss/
    iTunes: https://podcasts.apple.com/ca/podcast/astronomy-cast/id191636169?mt=2
    YouTube: https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

    πŸš€ JOIN OUR COMMUNITY:
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    πŸš€ CONTACT FRASER:
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    Email: frasercain@gmail.com

    πŸš€ LICENSE:
    ════════════════════════════════════
    Creative Commons Attribution 4.0 International (CC BY 4.0)

    You are free to use my work for any purpose you like, just mention me as the source and link back to this video.

    Support Universe Today Podcast


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