Colonizing Red Dwarfs

Science & Futurism with Isaac Arthur

Isaac Arthur

Technology, Energy Abundance, Future Of Humanity, Spacecraft, Genetics, Space Infrastructure, Scifi, Post Scarcity, Sci Fi, Technological Future, Interstellar Travel, Engineering, Artificial Intelligence, Space Station, Space, Long Term Future, Human Civilizaiton, Civilizaiton, Cybernetics, Science, Futurism, Space Megastructures, Space Colonization, Space Industry, Future Philosophy, Transhumanism, Spaceship, Megastructures, Physics, Starship, Astronomy, Future

4.9 • 782 Ratings

🗓️ 28 January 2021

⏱️ 29 minutes

🔗️ Recording | iTunes | RSS

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Summary

For every yellow star like our own there are ten times as many smaller stars. Red Dwarfs are the most common type of star, outnumbering all the others combined, and as we head out into interstellar space to colonize the galaxy, the exoplanets around these red alien suns may be the most common home for settlers. Get a free month of Curiosity Stream: https://curiositystream.com/isaacarthur Watch the video version: https://youtu.be/Vr5Fap_RTu0 Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Listen or Download the audio of this episode from Soundcloud: Episode's Audio-only version: https://soundcloud.com/isaac-arthur-148927746/colonizing-red-dwarfs Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/colonizing-red-dwarfs-narration-only Credits: Colonizing Red Dwarfs Science & Futurism with Isaac Arthur Episode 275, January 27, 2021 Written, Produced & Narrated by Isaac Arthur Editors: Darius Said Jason Burbank Jerry Guern https://www.youtube.com/channel/UCnySNJ_gDOdRAdUXbIpxYQw Keith Blockus S. Kopperud Cover Art: Jakub Grygier https://www.artstation.com/jakub_grygier Graphics: Bryan Versteeg http://spacehabs.com Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana Ken York https://www.facebook.com/YDVisual/ Sergio Botero https://www.artstation.com/sboterod?fref=gc Udo Schroeter Music: Miguel Johnson https://migueljohnson.bandcamp.com See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Transcript

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0:00.0	Hello, SFIA audio listeners, in this month's Nebula exclusive, Big Alien Theory,
0:05.0	we're asking the reason alien civilizations might be rare is because most aliens are huge.
0:10.0	To hear it and every episode early and add free, plus hours of bonus content, check
0:15.0	out Go.nebola.tv slash Isaac Arthur and use my code, Isaac Arthur.
0:20.0	This video is sponsored by CuriosityStream.
0:23.3	Get access to my streaming video service, Nebula, when you sign up for CuriosityStream
0:28.1	using the link in the description.
0:30.6	The greatest and mightiest of civilizations will be around the larger stars, but the longest
0:35.4	lasting ones will be around the red dwarfs.
0:46.3	There are billions of galaxies, each containing many billions of stars, with billions and billions of worlds around them all,
0:53.3	and around three and four of worlds around them all.
0:54.3	And around three and four of those alien suns are red dwarfs, so we should assume an awful
0:59.1	lot of folks we'll live under a red sun in the future, and I thought we should explore
1:03.6	some of the difficulties and special challenges of colonizing such red dwarf systems, with
1:08.8	a particular focus on tightly locked planets around such suns,
1:12.6	where one side exists in eternal daytime and the other in perpetual darkness.
1:18.0	First, we should start by recognizing that regardless of if it is a red dwarf or blue giant,
1:23.4	our stars are white. We just call them red and yellow and blue as means of categorizing
1:28.1	them simply. White light sources that are generated by heat, whether it's a sun or an
1:32.9	incadacent light bulb, have a temperature that controls what the peak wavelength is for the light
1:37.1	emitted, but the peak is not the entirety of the light. For a glowing hot, red metal rod,
1:43.1	that peak isn't even red, it's somewhere in the infrared
	...

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