Lava tubes can be a solution to a lot of our space problems. They can provide habitat space on Moon, Mars and even beyond. But how do we prepare to explore them? That's what we're discussing with Professor Francesco Sauro.

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👉 Prof. Francesco Sauro: https://www.unibo.it/sitoweb/francesco.sauro2/en

👉 Twitter: https://twitter.com/cescosauro

👉 La Venta Association: https://laventa.it/

• 00:00 Intro

• 01:16 Getting into caves

• 02:32 Why lava tubes are interesting

• 04:00 Challenges associated with caves

• 08:10 How to train astronauts for lava tubes

• 15:15 What can we find in lava tubes on Moon and Mars

• 20:32 Lava tubes as habitats

• 27:57 Ice caves on Europa, Enceladus and Mars

• 32:15 Outro

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Is there a habitable zone around a black hole? Can you get stuck in the middle of a big space station? How will Starship get human-rated? Why is the Fermi Paradox even a paradox? All this in this week's Q&A!

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• 00:00 Start

• 01:03 [Tatooine] Can you get stuck in a space station?

• 06:07 [Coruscant] How is Fermi Paradox even a paradox?

• 09:33 [Hoth] Is there a habitable zone around a black hole?

• 14:46 [Naboo] What are the highest velocities stars have been recorded travelling?

• 16:55 [Kamino] Will galaxies fall apart?

• 20:34 [Bespin] Why is there a Crisis in Cosmology?

• 23:06 [Mustafar] Is Starship good for humans?

• 26:41 [Alderaan] What will investment in space look like in the future?

• 30:07 [Dagobah] How to observe dark matter?

• 32:56 [Yavin] What's the origin of our Solar System?

• 36:44 [Mandalore] How long till the sports on other planets?

• 38:52 [Geonosis] Is there oil on Mars?

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Webb is fully operational again, Rolls-Royce is building a nuclear reactor for the Moon, and the space debris worst-case scenario almost happened.

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• 00:00 Intro

• 00:14 James Webb is fully operational again
  
  

  • https://www.universetoday.com/159897/good-news-webb-is-fully-operational-again/

• 01:46 Rolls-Royce Nuclear Reactor for Space
  
  

  • https://www.universetoday.com/159859/rolls-royce-reveals-a-nuclear-reactor-that-could-provide-power-on-the-moon/

• 03:46 Very Nasty Space Collision Almost Happened
  
  

  • https://twitter.com/LeoLabs_Space/status/1619057013992071168

• 07:09 Drag Sail Success
  
  

  • https://www.universetoday.com/159903/drag-sail-success-this-satellite-wont-turn-into-space-junk/

• 08:47 Destroying Rubble Pile Asteroids
  
  

  • https://www.universetoday.com/159766/dont-bother-trying-to-destroy-rubble-pile-asteroids/

• 11:10 Q&A with Fraser

• 12:11 Extremely Heavy Early Stars
  
  

  • https://www.universetoday.com/159800/the-first-stars-may-have-weighed-more-than-100000-suns/

• 14:46 12-Year Exoplanets Timelapse
  
  

  • https://www.universetoday.com/159875/watch-this-12-year-timelapse-of-exoplanets-orbiting-their-star/

• 18:33 Measuring the Mass Of A Dead Star With Microlensing
  
  

  • https://www.cam.ac.uk/stories/light-bending-around-star

• 21:48 Outro

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How will a human Mars mission play out? Where exactly should it go? What unexpected challenges will we face? We're discussing all these aspects with Rick Davis. He is the Assistant Director for Science and Exploration, NASA’s Science Mission Directorate.

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🐦 Rick Davis on Twitter: https://twitter.com/redplanetrick

👉 NASA Blog Article on choosing the landing site on Mars:

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• 00:00:00 Intro

• 00:01:29 Training for Mars on Earth

• 00:07:11 Choosing a landing site

• 00:20:37 Unexpected challenges of Mars

• 00:52:38 Planetary protection

• 00:56:51 Exploring lava tubes

• 00:59:49 What's next?

• 01:09:24 Outro

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Can you maintain a stable orbit with just a solar sail? Will a Dyson sphere or swarm kill all life inside of it? Can you protect yourself from a solar flare? What's the oldest ice in the Universe? All this and more in this week's Q&A!

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• 00:00 Start

• 00:48 [Tatooine] Can you maintain orbit with just a solar sail?

• 06:44 [Coruscant] Does a Dyson sphere kill all life inside of it?

• 11:04 [Hoth] Can a Faraday cage protect from a solar flare?

• 13:52 [Naboo] Can there be a stable irregular-shaped planet?

• 17:45 [Kamino] How small can a rocket be?

• 19:35 [Bespin] Can we detect artificial light on Proxima b?

• 22:54 [Mustafar] How old was the Universe when first ice was able to form?

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Starship completes its wet-dress rehearsal, another problem for Webb, a nuclear rocket test is coming, and more cool NIAC grants.

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👉 First NIAC Interview:

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• 00:00 Intro

• 00:14 Starship Wet Dress Rehersal

• 03:18 JWST's NIRISS problems
  
  

  • https://www.universetoday.com/159790/webb-niriss-instrument-has-gone-offline/

• 04:57 Webb's first occultation

• 07:46 Extremely Close Asteroid Flyby
  
  

  • https://www.jpl.nasa.gov/news/nasa-system-predicts-small-asteroid-to-pass-close-by-earth-this-week

• 09:37 DARPA Nuclear Rocket Test by 2027
  
  

  • https://www.nasa.gov/press-release/nasa-darpa-will-test-nuclear-engine-for-future-mars-missions

• 12:05 How to Miniaturize Nuclear Batteries
  
  

  • https://www.universetoday.com/159692/exploring-the-outer-solar-system-takes-power-heres-a-way-to-miniaturize-nuclear-batteries-for-deep-space/

• 14:26 Tiny tiny tractor beam
  
  

  • https://www.universetoday.com/159695/scientists-build-a-teeny-tiny-tractor-beam/

• 15:56 Support us on Patreon

• 16:44 Growing Structures on Mars
  
  

  • https://www.universetoday.com/159635/instead-of-building-structures-on-mars-we-could-grow-them-with-the-help-of-bacteria/

• 18:30 Light Pollution Is Getting Worse
  
  

  • https://www.universetoday.com/159704/light-pollution-is-obscuring-the-night-sky-rip-stargazing/

• 21:27 Outro

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What if two black holes with opposing spin merge? Can we use the Moon's L2 Lagrange point? How habitable are Mars's lava tubes? Can Starships compensate for satellite light pollution? All this and more in this week's episode Q&A with Fraser Cain.

🦄 Support us on Patreon: https://patreon.com/universetoday

• 00:00 Start

• 01:09 [Tatooine] What if two black holes with opposing spin merge?

• 06:16 [Coruscant] When will the first person be born in space?

• 10:24 [Hoth] Can we use the Moon's L2 Lagrange point?

• 15:39 [Naboo] Can a captured planet lurk in the Oort cloud?

• 18:51 [Kamino] What about the dark forest hypothesis?

• 23:06 [Bespin] How habitable are Mars lava tubes?

• 27:15 [Mustafar] Can we use radars to identify asteroids?

• 29:36 [Alderaan] Can Starships compensate for satellite light pollution?

• 34:28 [Dagobah] Why does NASA never show us the spacecraft travelling in space?

• 38:18 [Yavin] Where would I time travel?

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The Titan Dragonfly is coming together, NASA is considering a new kind of nuclear rocket, getting more warning for solar flares, and pinpointing carbon emissions from space.

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• 00:00 Intro

• 00:15 Titan Helicopter Starts to Come Together
  
  

  • https://www.universetoday.com/159611/nasa-is-continuing-to-build-the-titan-dragonfly-helicopter-here-are-its-rotors/

• 02:38 New NIAC Nuclear Rocket Design
  
  

  • https://www.universetoday.com/159599/new-nuclear-rocket-design-to-send-missions-to-mars-in-just-45-days/

• 05:57 Lunar Flashlight Has Propulsion System Problems

• 07:25 Solar Flashes and Flares

• 09:36 CO2 from Space
  
  

  • https://www.universetoday.com/159580/nasa-satellites-can-pinpoint-the-exact-locations-of-excessive-co2-emissions/

• 11:21 Support us on Patreon

• 12:40 Orphaned Protostar
  
  

  • https://www.universetoday.com/159539/astronomers-spot-an-orphaned-protostar/

• 14:27 Measuring the Universe with Shadows
  
  

  • https://www.universetoday.com/159543/using-the-shadows-of-clusters-to-measure-the-universe/

• 16:26 Outro

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Should we change "Dark Matter" to "Dark Curvature"? How do you navigate through dense asteroid fields? What's the future of space toilets? Do aliens block their outgoing signals? All these and more in this week's Q&A with Fraser Cain.

🦄 Support us on Patreon: https://patreon.com/universetoday

00:00 Start

00:58 [Tatooine] How do you navigate through dense asteroid fields?

04:02 [Coruscant] Should we change "Dark Matter" to "Dark Curvature"?

07:57 [Hoth] How far can we communicate?

10:49 [Naboo] How can we solve the Fermi paradox?

17:35 [Kamino] What's the future of space toilets?

19:51 [Bespin] Can we avoid the great filter?

22:53 [Mustafar] Why the CMB doesn't go away?

25:35 [Alderaan] Do aliens block their outgoing signals?

27:33 [Dagobah] Can we create a magnetic shield for our spaceships?

30:39 [Yavin] Can aliens detect Earth as a habitable world?

31:44 [Mandalore] Does gravity extend forever?

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Keep your eyes on the sky for a comet, another Mars rover has died, the leaky Soyuz is going to be replaced, JWST dominates the American Astronomical Society meeting, and is Starship just around the corner?

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• 00:00 Intro

• 00:17 A Good Comet is Coming
  
  

  • https://www.universetoday.com/159454/comet-e3-ztf-brightens-as-the-first-good-comet-of-2023/

• 02:47 Another One Bites The Martian Dust
  
  

  • https://www.universetoday.com/159553/china-unable-to-reestablish-contact-with-its-zhurong-mars-rover/

• 06:36 The Leaky Soyuz Needs to Be Replaced

• 08:36 James Webb Finds Its First Exoplanet
  
  

  • https://www.universetoday.com/159581/the-webb-has-confirmed-its-first-exoplanet-and-its-the-same-size-as-earth/

• 10:57 Star Disk from JWST

• 12:49 Early Galaxies from James Webb
  
  

  • https://www.universetoday.com/159567/the-james-webb-links-modern-oddball-galaxies-to-ancient-galaxies-in-the-cosmic-dawn/

• 14:55 Support us on Patreon

• 15:55 NIAC Awards

• 18:03 Starship Gets Closer to First Orbital Test

• 19:29 Build your own ELT
  
  

  • https://universetoday.com/159565/need-a-project-you-can-build-a-paper-model-of-the-extremely-large-telescope/

• 20:41 Outro

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