In this week's QA, I talk about what's driving the expansion of the Universe, how big the observable Universe is to the actual Universe, and what will happen to dogs in gravity.

00:00 Start
00:26 What's driving the expansion of the Universe?
04:01 How big is the observable Universe compared to the actual Universe?
07:25 Do people watch videos or listen to my podcasts?
10:37 Will dogs enjoy lunar gravity?
12:59 Why aren't we looking deeper in the Kuiper Belt?
15:54 What would be some good ways to explore lava tubes?
19:36 What happened to the Overwhelmingly Large Telescope?
22:48 Would space LIGO be more sensitive?
27:56 What's the most like Great Filter?
31:07 Why do we talk about distance in form of time?
35:14 Any future collaborations with Isaac Arthur?
35:58 How long will the Mars helicopter survive?
40:07 When will NASA incorporate Starship into its plans?
42:15 How dangerous is the Kessler Syndrome?

🚀 OUR WEBSITE:
════════════════════════════════════
https://www.universetoday.com/

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

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

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

RSS: https://www.universetoday.com/feed/ws...
iTunes: https://podcasts.apple.com/ca/podcast...
YouTube:    / @weeklyspacehangout  

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...
YouTube:    / @astronomycast  

🚀 JOIN OUR COMMUNITY:
════════════════════════════════════
Patreon:   / universetoday  

🚀 OTHER SOCIAL MEDIA:
════════════════════════════════════
Twitter:   / fcain  
Twitter:   / universetoday  
Facebook:   / universetoday  
Instagram:   / universetoday  
Twitch:   / fcain  

🚀 CONTACT FRASER:
════════════════════════════════════
Email: [email protected]

🚀 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.