The Search for Extra-Terrestrial Intelligence, SETI, relies on looking for signals from distant alien worlds where even very powerful signals can weaken to near nothing. We'll explore today how we, or extraterrestrials, might get around this problem, be it by immense star-powered transmitters or by using laser communication beams.

Part 2 on The Exoplanets Channel: https://youtu.be/04AIXj78nJ0
Part 3 with Parallax Nick: https://www.youtube.com/watch?v=iim--dKNUIk

Go to https://buyraycon.com/isaacarthur for 15% off your order! Brought to you by Raycon.

Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
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

Credits:
Talkative Aliens
Science & Futurism with Isaac Arthur
Episode 249, July 30, 2020
Written, Produced, and Narrated by Isaac Arthur

Editors:
Jerry Guern
Keith Blockus

Cover Art:
Jakub Grygier https://www.artstation.com/jakub_grygier

Graphics:
Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana
Ken York https://www.facebook.com/YDVisual/
Mihail Yordanov
Sergio Botero https://www.artstation.com/sboterod?fref=gc

Music:
Martin Rezny, "Lifelight" https://soundcloud.com/martin-re-n-1
Aerium, "Waters of Atlantis" https://www.youtube.com/channel/UCRnUJY3l5vIJFGsY3XvW4dQ
AJ Prasad of Dark Future, "Cold Shadow" https://www.youtube.com/watch?v=xA8-7qwaEPU
Paradox Interactive, "Distant Nebula" https://www.paradoxplaza.com
Lombus, "Goldilocks Analemma" https://lombus.bandcamp.com
Ross Bugden, "City Lights" https://www.youtube.com/channel/UCQKGLOK2FqmVgVwYferltKQ

Talkative Aliens (Narration Only)

One possible solution to the Fermi Paradox, the big question of where all the aliens are, is that some ancient galactic disaster wiped out extraterrestrial civilizations, and we're among the first to arrive back on the spacefaring scene.

Watch the Video Version: https://youtu.be/ScRIcc1sKb8
Start listening with a 30-day Audible trial and your first audiobook is free. Visit
http://www.audible.com/isaac or text "isaac" to 500-500.
Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
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/the-fermi-paradox-galactic-disasters
Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/the-fermi-paradox-galactic-disasters-narration-only

Credits:
The Fermi Paradox: Galactic Disasters
Science & Futurism with Isaac Arthur
Episode 252; August 20, 2020
Written, Produced, and Narrated by Isaac Arthur

Editors:
Darius Said
Jerry Guern

Cover Art:
Jakub Grygier https://www.artstation.com/jakub_grygier

Graphics:
Mihail Yordanov

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

The Fermi Paradox: Galactic Disasters (Narration Only)

Over the centuries humanity has tried many versions of government and many variations on each type, today we will examine how technology and space colonization might impact what types of governments we use in the future.

Watch the Video Version: https://youtu.be/8ZMqvjrp5ec
Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/
Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
SFIA Merchandise available: https://www.signil.com/sfia/

Social Media:
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

Credits:
Government Types of the Future
Science & Futurism with Isaac Arthur
Episode 253; August 27, 2020
Written, Produced & Narrated by Isaac Arthur

Editors:
Dillon Olander 
Jerry Guern
Konstantin Sokerin
Matthew Campbell

Cover Art:
Jakub Grygier https://www.artstation.com/jakub_grygier

Graphics:
Bryan Versteeg http://spacehabs.com
Fishy Tree https://www.deviantart.com/fishytree/
Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana
Sergio Botero https://www.artstation.com/sboterod?fref=gc
Udo Schroeter


Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

Government Types of the Future (Narration Only)

Our monthly livestream Q&A session For August 2020

Watch Paleontology and Jerry Guern's other stories:
https://www.youtube.com/channel/UCnySNJ_gDOdRAdUXbIpxYQw
Visit our Website: www.isaacarthur.net
Support us on Patreon: www.patreon.com/IsaacArthur
Social Media:
Facebook Group: www.facebook.com/groups/1583992725237264/
Reddit: www.reddit.com/r/IsaacArthur/
Twitter: twitter.com/Isaac_A_Arthur on Twitter and RT our future content.

SFIA Monthly Livestream 22 - August 30, 2020

To travel to other planets, we will first have to build up are infrastructure closer to home, in orbit of Earth. The best place to get all the mass for those space stations and rocket fuel depots is from the Moon, and we'll examine the milestones we'll need to reach to start lunar resource harvesting and building up space settlements.

Watch the video version: https://youtu.be/gOr-Gd58zu8
Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/
National Space Society Roadmap:
https://space.nss.org/nss-roadmap-to-space-settlement-3rd-edition-2018-contents/
Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
SFIA Merchandise available: https://www.signil.com/sfia/

Social Media:
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

Credits:
Colonizing Cislunar Space and the Lagrange Points
Science & Futurism with Isaac Arthur
Episode 255; September 10, 2020
Produced & Narrated by Isaac Arthur

Written by:
Isaac Arthur
Jerry Guern
Keith Blockus

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/
Kris Holland (Mafic Studios) www.maficstudios.com
Katie Byrne
Sergio Botero https://www.artstation.com/sboterod?fref=gc
SpaceResourceCGI
Tristand3D
Udo Schroeter

Music
Sergey Cheremisninov, "Sirius"
https://www.s-cheremisinov.com
Reign Pagaran, "Distant Voyager"
Aerium, "Fifth Star of Aldebaran"
https://www.youtube.com/channel/UCRnUJY3l5vIJFGsY3XvW4dQ
Denny Schneidemesser, "Across the Universe" & "Luminous Rays"
https://soundcloud.com/denny-schneidemesser
Chris Zabriskie, "Wonder Cycle" http://chriszabriskie.com

Colonizing Cislunar Space And The Lagrange Points (Narration Only)

Asteroids represent a serious hazard to Earth, past, present, and future, but will be even more of a concern to humanity as we venture out to space beyond beyond our atmosphere's protection. We will explore what technologies and methods may be available to help protect us from asteroids.

Get a free month of Curiosity Stream: https://curiositystream.com/isaacarthur
Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
SFIA Merchandise available: https://www.signil.com/sfia/

Social Media:
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

Credits:
Asteroid Defense
Science & Futurism with Isaac Arthur
Episode 255a; September 13, 2020
Narrated & Produced by
 Isaac Arthur



Written by:

Isaac Arthur

Jerry Guern https://www.youtube.com/channel/UCnySNJ_gDOdRAdUXbIpxYQw



Graphics:

Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana



Music:
Markus Junnikkala
 https://www.markusjunnikkala.com/
Aerium https://www.youtube.com/channel/UCRnUJY3l5vIJFGsY3XvW4dQ

Asteroid Defense (Narration Only)

Asteroid Defense

The genesis and origin of life may require a very rare and delicate mixture of certain chemicals. One of those is phosphorus, and trying to figure out how we ever got enough of it in Earth's primordial soup for life to form in the first place has long puzzled scientists. We will also discuss the recent discovery of Phosphine Gas in Venus's Atmosphere

Start listening with a 30-day Audible trial and your first audiobook is free. Visit
http://www.audible.com/isaac or text "isaac" to 500-500.
Check out Jerry's Stories: https://www.youtube.com/watch?v=mxgArWbEhZg
Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
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

Credits:
The Fermi Paradox: The Phosphorus Problem
Science & Futurism with Isaac Arthur
Episode 257; September 24 20, 2020
Produced, and Narrated by Isaac Arthur
Written by Isaac Arthur & Jerry Guern

Editors:
Keith Blockus
Mark Warburton
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
Katie Byrne
Kristijan Tavcar
Sergio Botero

Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

The Fermi Paradox: The Phosphorus Problem (Narration Only)

It's been over half a century since we first went to the Moon, and nearly as long since we last went. To Return to the Moon we need a base with a purpose, and we'll look at what purposes we have in mind and what the bases might be like as we head back to establish a Lunar Colony.

Watch the Video Version: https://youtu.be/D-J9maAnhwg
Get a free month of Curiosity Stream: https://curiositystream.com/isaacarthur
National Space Society Roadmap:
https://space.nss.org/nss-roadmap-to-space-settlement-3rd-edition-2018-contents/
Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
SFIA Merchandise available: https://www.signil.com/sfia/

Social Media:
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

Credits:
Return to the Moon
Science & Futurism with Isaac Arthur
Episode 258; October 1, 2020
Produced & Narrated by Isaac Arthur

Written by:
Isaac Arthur
Keith Blockus

Editors:
Andy Nelson
Jerry Guern

Cover Art:
Jakub Grygier https://www.artstation.com/jakub_grygier

Graphics:
Emory Stagmer
Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana
Ken York https://www.facebook.com/YDVisual/
Katie Byrne
Sergio Botero https://www.artstation.com/sboterod?fref=gc
SpaceResourceCGI
Udo Schroeter

Music
Sergey Cheremisninov, "Sirius"
https://www.s-cheremisinov.com
Reign Pagaran, "Distant Voyager"
Aerium, "Fifth Star of Aldebaran"
https://www.youtube.com/channel/UCRnUJY3l5vIJFGsY3XvW4dQ
Denny Schneidemesser, "Across the Universe" & "Luminous Rays"
https://soundcloud.com/denny-schneidemesser

Return To The Moon

Science Fiction delights in showing us grim, dark, giant, and dystopian future cities of covered in garbage and where life is cheap, but how realistic are such metropolises and how can we avoid living in them?

Watch the video version: https://youtu.be/rFk3K68xS1k
Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/
Visit our Website: http://www.isaacarthur.net
Support us on Patreon: https://www.patreon.com/IsaacArthur
SFIA Merchandise available: https://www.signil.com/sfia/

Social Media:
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/mega-cities
Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/mega-cities-narration-only

Credits:
Mega-Cities
Science & Futurism with Isaac Arthur
Episode 259; September 17, 2020
Written, Produced & Narrated by Isaac Arthur

Cover Art:
Jakub Grygier https://www.artstation.com/jakub_grygier

Graphics:
Ken York https://www.facebook.com/YDVisual/
LegionTech Studios https://hades9.com
Sergio Botero https://www.artstation.com/sboterod?fref=gc
Udo Schroeter

Music by Miguel Johnson
https://soundcloud.com/migueljohnsonmjmusic