1,165 episodes
Universe Today Podcast Fraser Cain
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- Science
Space news, interviews, Q&As, and exclusive content from Universe Today.
Audio versions of Fraser Cain YouTube channel.
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[Interview] Deep Dive Intro Primordial Black Holes
What are primordial black holes and how are they different from all the other kinds of black holes out there? How could we possibly detect them and what would it mean for Cosmology? Can primordial black holes be a solution for dark matter? Finding out the answers in this interview.
🟣 Guest: Jason Kristiano
https://jkristiano.github.io/
📜 Generating large primordial fluctuations in single-field inflation for PBH formation:
https://arxiv.org/abs/2405.12149
🦄 Support us on Patreon:
https://patreon.com/universetoday
📚 Suggest books in the book club:
https://www.goodreads.com/group/show/1198440-universe-today-book-club
00:00 Intro
02:27 Formation of primordial black holes
11:25 The impact on the Universe
15:45 How can we observe black holes
20:30 Constraints on dark matter solution
22:56 Research
35:11 Further observations
44:18 Current obsessions
51:49 Final thoughts
📺 VIDEO VERSION
https://youtu.be/8UVsNMS3Pzs
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📩 CONTACT FRASER
frasercain@gmail.com
⚖️ LICENSE
Creative Commons Attribution 4.0 International (CC BY 4.0)
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[Interview] Satellites That Scoop Air And Use It As Propellant
Satellites run out of fuel and have to de-orbit and end their missions. But what if they had access to a practically infinite amount of fuel? What if they could scoop air from the atmosphere and use it as propellant? That is exactly the research that Dr Mansur Tisaev is doing!
🟣 Guest: Dr. Mansur Tisaev
https://www.researchgate.net/profile/Mansur-Tisaev
👉 Dr Andrea Lucca Fabris
https://www.surrey.ac.uk/people/andrea-lucca-fabris
🦄 Support us on Patreon:
https://patreon.com/universetoday
📚 Suggest books in the book club:
https://www.goodreads.com/group/show/1198440-universe-today-book-club
00:00 Intro
02:04 Ion engines
15:32 Effects of the solar activity
19:35 Advantages of air-breathing engines
28:13 What's next
32:05 Non-Earth applications
36:26 Interstellar applications
38:35 Current obsessions
41:03 Final thoughts
📺 VIDEO VERSION
https://youtu.be/Lz4O6AzLofQ
📰 EMAIL NEWSLETTER
Read by 60,000 people every Friday. Written by Fraser. No ads.
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📩 CONTACT FRASER
frasercain@gmail.com
⚖️ LICENSE
Creative Commons Attribution 4.0 International (CC BY 4.0)
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[Q&A] Galaxy Level Threats, The Truth About Binary Stars, Rogue Gravitational Waves
What percentage of stars live in binary systems? Are there Lagrange points all the way down? Can there be a rogue gravitational wave? Why do stars twinkle? Answering all these questions and more in this week's Q&A show.
🦄 Support us on Patreon:
https://patreon.com/universetoday
📚 Suggest books in the book club:
https://www.goodreads.com/group/show/1198440-universe-today-book-club
00:00 Start
00:24 [Andoria] Do most stars really live in binary systems?
05:44 [Vulcan] Which events could be galaxy-killers?
08:20 [Risa] Is it Lagrange points all the way down?
10:48 [Aeturen] Do binary stars have Lagrange points?
13:29 [Vendikar] Star Wars planets vs Star Trek planets
14:20 [Remus] Why some galaxies are "inactive"?
17:19 [Janus] What is the meaning of life?
18:19 [Cait] Is AI just overhyped marketing?
22:43 [Betazed] How big is the observable Universe?
25:57 [Cheleb] Could life exist on a tidally locked planet around a red dwarf?
29:25 [Nimbus] Why do stars twinkle?
31:01 [Belos] How to study astronomy as a hobby?
35:07 [Lyar] Can rogue gravity waves exist?
37:15 [Zalcon] Would aliens also have the scientific method?
📺 VIDEO VERSION
https://youtu.be/s0C-OmBlIiQ
📰 EMAIL NEWSLETTER
Read by 60,000 people every Friday. Written by Fraser. No ads.
Subscribe. It's FREE: https://universetoday.com/newsletter
🎧 PODCASTS
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Astronomy Cast: http://www.astronomycast.com/
🤳 OTHER SOCIAL MEDIA
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📩 CONTACT FRASER
frasercain@gmail.com
⚖️ LICENSE
Creative Commons Attribution 4.0 International (CC BY 4.0)
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[Interview] NASA Wants to Make Mars Less Toxic with This Clever Idea
Mars is full of toxic perchlorates that can be very harmful for future human missions. So, when people go to Mars, they will need to fix it. NASA has awarded a NIAC grant for a project that can help solving this problem. It's called Detoxifying Mars: the biocatalytic elimination of omnipresent perchlorates.
👉 More about the NIAC project:
https://www.nasa.gov/general/detoxifying-mars/
🟣 Guests: Dr. Lynn Rothschild, Dr. Garrett Roberts Kingman
🦄 Support us on Patreon:
https://patreon.com/universetoday
📚 Suggest books in the book club:
https://www.goodreads.com/group/show/1198440-universe-today-book-club
00:00 Intro
02:31 Perchlorates on Mars
10:48 The NIAC proposal
35:09 What's next
49:18 Current obsessions
53:35 Final thoughts
📺 VIDEO VERSION
https://youtu.be/GitfDWpm6UU
📰 EMAIL NEWSLETTER
Read by 60,000 people every Friday. Written by Fraser. No ads.
Subscribe. It's FREE: https://universetoday.com/newsletter
🎧 PODCASTS
Universe Today: https://universetoday.fireside.fm/
Astronomy Cast: http://www.astronomycast.com/
🤳 OTHER SOCIAL MEDIA
Twitter: https://twitter.com/fcain
Twitter: https://twitter.com/universetoday
Facebook: https://facebook.com/universetoday
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📩 CONTACT FRASER
frasercain@gmail.com
⚖️ LICENSE
Creative Commons Attribution 4.0 International (CC BY 4.0)
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[Space Bites] New Visible Nova // Starship Mars Sample Return // Frost on Olympus Mons
We’re now weeks away from a nova, NASA is looking for new Mars Sample Return mission ideas, there’s frost on Olympus Mons, and watching asteroids collide in another star system.
🦄 Support us on Patreon:
https://patreon.com/universetoday
📚 Suggest books in the book club:
https://www.goodreads.com/group/show/1198440-universe-today-book-club
00:00 Intro
00:15 A nova's coming
https://www.universetoday.com/167320/were-now-just-weeks-away-from-a-stellar-explosion-you-can-see-with-your-own-eyes/
04:08 Alternative Mars Sample Return architectures
https://www.universetoday.com/167361/nasa-is-considering-other-ways-of-getting-its-mars-samples-home/
06:34 Chandra confirms exoplanet habitability
08:06 Euclid sees rogue planets too
https://www.universetoday.com/167326/euclid-is-finding-free-floating-planets-in-orion-too/
09:17 Frost on Olympus Mons
https://www.universetoday.com/167358/frost-seen-on-olympus-mons-for-the-first-time/
11:03 Vote results
11:51 Free lunch for satellites
https://www.universetoday.com/167366/next-generation-satellites-might-skim-the-atmosphere-using-air-as-a-propellant/
13:57 JWST sees asteroi collisions in another star system
https://www.universetoday.com/167344/webb-sees-asteroids-collide-in-another-star-system/
15:28 Starliner has 5 leaks
https://www.universetoday.com/167381/starliner-has-five-leaks/
17:03 More space news
17:36 Moon-based astronomy
📺 VIDEO VERSION
https://youtu.be/yPGGi1-yAUE
📰 EMAIL NEWSLETTER
Read by 60,000 people every Friday. Written by Fraser. No ads.
Subscribe. It's FREE: https://universetoday.com/newsletter
🎧 PODCASTS
Universe Today: https://universetoday.fireside.fm/
Astronomy Cast: http://www.astronomycast.com/
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Twitter: https://twitter.com/fcain
Twitter: https://twitter.com/universetoday
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📩 CONTACT FRASER
frasercain@gmail.com
⚖️ LICENSE
Creative Commons Attribution 4.0 International (CC BY 4.0)
Support Universe Today Podcast -
[Interview] I'm Convinced. Let's Do Astronomy From the Moon
What kind of science can we do with telescopes on the Moon? Giant radio dishes in craters, gravitational wave detectors, UV-interferometers and much more. How Starship will completely change this field and enable new opportunities.
🟣 Guest: Dr. Martin Elvis
https://cfa.harvard.edu/people/martin-elvis
🦄 Support us on Patreon:
https://patreon.com/universetoday
📚 Suggest books in the book club:
https://www.goodreads.com/group/show/1198440-universe-today-book-club
00:00:00 Intro
00:02:11 Why put telescopes on the Moon
00:10:00 Unique things for the Moon
00:18:01 What a telescope should look like
00:27:31 Gravitational waves observatory
00:37:12 History of the Moon
00:41:00 What's next
00:49:43 How Starship will change the game
00:54:29 Current obsessions
01:02:37 Final thoughts
📺 VIDEO VERSION
https://youtu.be/Cz511HLQynM
📰 EMAIL NEWSLETTER
Read by 60,000 people every Friday. Written by Fraser. No ads.
Subscribe. It's FREE: https://universetoday.com/newsletter
🎧 PODCASTS
Universe Today: https://universetoday.fireside.fm/
Astronomy Cast: http://www.astronomycast.com/
🤳 OTHER SOCIAL MEDIA
Twitter: https://twitter.com/fcain
Twitter: https://twitter.com/universetoday
Facebook: https://facebook.com/universetoday
Instagram: https://instagram.com/universetoday
📩 CONTACT FRASER
frasercain@gmail.com
⚖️ LICENSE
Creative Commons Attribution 4.0 International (CC BY 4.0)
Support Universe Today Podcast
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