Episode 548: Q&A 95: Is Techno-Optimism Blinding Us To The Challenges of Space Exploration? And More...


Manage episode 239920468 series 2513416
By Universe Today. Discovered by Player FM and our community — copyright is owned by the publisher, not Player FM, and audio is streamed directly from their servers. Hit the Subscribe button to track updates in Player FM, or paste the feed URL into other podcast apps.

In this week's questions show, I answer if techno optimism is blinding us to the challenges of spaceflight, why there aren't spacecraft at all the planets right now, could the Great Attractor be dark matter? And more...

Links to various raw images
Cassini - https://solarsystem.nasa.gov/raw-images/raw-image-viewer/?order=earth_date+desc&per_page=50&page=0
Curiosity - https://mars.nasa.gov/msl/multimedia/raw/#/?slide=2496
Dawn - https://solarsystem.nasa.gov/missions/dawn/galleries/images/?page=0&per_page=25&order=created_at+desc&search=&tags=dawn&condition_1=1%3Ais_in_resource_list&category=51

00:33 Is techno-optimism blinding us to challenges of spaceflight
04:17 Why aren't there spacecraft at all the planets right now?
06:22 What if the Universe wraps?
08:39 Could the Great Attractor be dark matter?
10:21 What's the biggest telescope that could be built on the Moon?
11:50 Open your mind to crop circles
13:59 How do you steer a solar sail?
16:25 Twin planets in L3 Lagrange Points?
18:23 Shouldn't the frost line move outward?
19:59 Can a red giant support life?
22:07 What if astronauts get sick?
24:07 How does the radial velocity method detect multiple planets?

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.

Our Book is out!

Audio Podcast version:
ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2
RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

Weekly email newsletter:

Weekly Space Hangout:

Astronomy Cast:

Support us at: http://www.patreon.com/universetoday
More stories at: http://www.universetoday.com/
Twitch: https://twitch.tv/fcain
Follow us on Twitter: @universetoday
Like us on Facebook: https://www.facebook.com/universetoday
Instagram - https://instagram.com/universetoday

Team: Fraser Cain - @fcain / frasercain@gmail.com
Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw
Chad Weber - weber.chad@gmail.com

Support Universe Today podcasts with Fraser Cain

563 episodes