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Universe Today Podcast

Fraser Cain
Universe Today Podcast
Latest episode

1508 episodes

  • Universe Today Podcast

    [Q&A+] Humanity's Biosignatures, Galaxy Rotation, The Ultimate Question

    2026/03/17 | 20 mins.
    BONUS QUESTION STARTS AT 15:49
    Watch the video here (with no ads) or on YouTube: https://youtu.be/GvVZsDw3Xk0
    If the robots take over, what would our biosignatures look like? is a galaxy's rotation tied to its black hole? what would happen to the Universe if dark matter disappeared? And in Q&A+, which scifi universe would I like to live in?
    00:00 Intro

    00:25 [@AriasThirdOfHisName] What will be left of us if robots take over?

    04:52 [@Frosty.Winnipeg] Is the rotation of a galaxy tied in any way to the rotation of its black hole?

    06:09 [@EdSceptic-y2e] What would happen if all the dark matter dissappeared?

    11:19 [@christiandesalliers4663] Why does material must shead it's angular momentum before falling into a black hole?

    14:58 [@BigC799] What three questions would I ask the Universe?

    15:49 [@kimbarron4239] Which fictional universe would I like to live in?

    17:40 Outro
  • Universe Today Podcast

    [Interview+] Little Red Dots Could Be Something Completely Unexpected

    2026/03/16 | 47 mins.
    BONUS PART START AT 28:49
    Watch here (with no ads) or on YouTube: https://youtu.be/4caOfg5K8Is
    Little Red Dots are one of the biggest mysteries from JWST so far. They could be galaxies. They could be supermassive black holes. But they also could be supermassive stars. In fact, this suggestion could help solve another big cosmological mystery about globular clusters. More details on that in this interview.
    🟣 Guest: Dr. John Chisholm https://www.chisholmjohn.com/
    📜 Little Red Dots as Globular Clusters in Formation https://arxiv.org/pdf/2602.15935
    00:00 Intro

    01:41 Finding LRDs in JWST data

    07:05 Probably not black holes

    13:08 Globular clusters as possible descendants

    18:56 The evidence for supermassive stars

    28:49 Deepest JWST image yet

    42:59 Current obsessions

    45:10 Final thoughts
  • Universe Today Podcast

    [Interview+] How Vera Rubin's Insane Data Pipeline Works

    2026/03/15 | 23 mins.
    How does Vera Rubin's data stream work? Why are there data brokers and what's their function? Who can use the data and how you can do that? How will the discoveries be made and who will have naming rights? Finding the answers in this interview.
    Watch here (with no ads) or on YouTube: https://youtu.be/VKrpJODdEM0
    🟣 Guest: Dr. Tom Matheson
    https://antares.noirlab.edu/
    00:00 Intro

    01:34 How Rubin's data pipeline works

    04:41 Data brokers

    08:45 Who can access the data

    10:02 How discoveries will work

    15:55 How can one tap in the data

    21:46 Final thoughts
  • Universe Today Podcast

    [Space Bites+] Improving ELT // More from DART // Sun's Heartbeat

    2026/03/14 | 27 mins.
    BONUS STORY STARTS AT 21:25
    Watch here (with no ads) or on YouTube: https://youtu.be/bqeK-3s-y1s
    Starshades for ground-based telescopes, DART proved that asteroids share material, a new way to measure the age of the Universe, Webb sees Jupiter’s auroras. And in Space Bites+, how Dyson Spheres and Stellar Engines could be stable.
    00:00 Intro

    00:18 Starshades for Telescopes https://www.universetoday.com/articles/starshade-concept-could-reveal-earth-like-exoplanets

    03:38 Proba-3's problems https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Work_ongoing_to_restore_contact_with_Proba-3_s_Coronagraph

    05:19 More from DART https://www.universetoday.com/articles/scientists-find-the-first-direct-evidence-of-binary-asteroids-sharing-material

    08:28 New way to measure the age of the Universe https://www.universetoday.com/articles/the-answer-is-written-in-the-stars

    11:51 JWST Reveals Surprises in Jupiter’s Auroras https://www.universetoday.com/articles/the-jwst-reveals-some-puzzling-surprises-in-jupiters-northern-aurora

    13:13 New Findings About The Sun https://www.universetoday.com/articles/the-sun-that-never-flips

    14:57 Sun's Heartbeat https://www.universetoday.com/articles/the-sun-has-a-heartbeat 16:34 Vote results https://www.youtube.com/@frasercain/posts

    17:11 This Could be Masking The Signals from Aliens https://www.universetoday.com/articles/aliens-might-have-their-radio-signals-blurred-by-their-stars-solar-wind

    19:09 Detecting Binary SMBHs Without Gravitational Waves https://www.universetoday.com/articles/looking-for-supermassive-black-hole-binaries-with-a-flash-of-starlight

    20:40 Cosmic Hawk https://www.universetoday.com/articles/vlt-image-captures-a-cosmic-hawk-spanning-its-wings

    21:25 Stabe Dyson Spheres https://www.universetoday.com/articles/new-study-says-theres-a-way-to-make-dyson-bubbles-and-stellar-engines-stable

    22:49 Thoughts on YouTube Premium
  • Universe Today Podcast

    [Q&A+] Superfast Neutrinos, Types of Astronomers, Gravitational Limits for Planets

    2026/03/12 | 20 mins.
    BONUS QUESTION STARTS AT 15:13
    Watch the video here (with no ads) or on YouTube: https://youtu.be/zWkaeakf4Mg
    Which different types of astronomers exist? If Mars flat? Is there a gravitational limit for planets? And in Q&A+, could other civilizations be frozen in time?
    00:00 Intro

    00:23 [@paigepotter4682] How do telescopes decide where to look?

    03:34 [@drZab] How can neutrinos from a supernova arrive faster than light?

    07:05 [@luboinchina3013] Is there a gravitational limit for planets to launch rockets from?

    10:01 [@RP1_4breakfast] is Mars flat too?

    10:31 [@fstrelniece] Which flavours do Astronomers come in?

    12:37 [@Justchris6436] Would the perception of us from far away be the same?

    13:34 [@silasmiller4417] How powerful could gravitational waves get on earth?

    15:13 [@bryce.lochlan] Could most civilizations we see still be frozen in a time before they even evolved?

    18:37 Outro

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About Universe Today Podcast

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