Space colonies of the future? | CNN

CNN values your feedback

1. How relevant is this ad to you?
2. Did you encounter any technical issues?
Thank You!
Your effort and contribution in providing this feedback is much appreciated.
Close
Ad Feedback
Arts
Design
Fashion
Architecture
Luxury
Beauty
Video
More
Arts Design Fashion Architecture Luxury Beauty Video
Watch Listen Live TV
My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

Live TV Listen Watch
Edition
US
International
Arabic
Español
Edition
  • US
  • International
  • Arabic
  • Español

Arts
Design
Fashion
Architecture
Luxury
Beauty
Video

Follow CNN Style
Download the CNN App

  • World
    • Africa
    • Americas
    • Asia
    • Australia
    • China
    • Europe
    • India
    • Middle East
    • United Kingdom
  • US Politics
    • Elections 2026
    • Trump
    • Facts First
    • CNN Polls
    • Redistricting Tracker
    • Epstein Files
  • Business
    • Tech
    • Media
    • Calculators
    • Videos
  • Markets
    • Pre-markets
    • After-Hours
    • Fear & Greed
    • Investing
  • Health
    • Life, But Better
    • Fitness
    • Food
    • Sleep
    • Mindfulness
    • Relationships
  • Entertainment
    • Movies
    • Television
    • Celebrity
  • Tech
    • Innovate
  • Style
    • Arts
    • Design
    • Fashion
    • Architecture
    • Luxury
    • Beauty
    • Video
  • Travel
    • Destinations
    • Food & Drink
    • Stay
    • News
    • Videos
  • Sports
    • Football
    • Tennis
    • Golf
    • Motorsport
    • US Sports
    • Olympics
  • Science
    • Space
    • Life
    • Unearthed
  • Climate
    • Solutions
    • Weather
  • Weather
    • Video
    • Climate
  • Ukraine-Russia War
  • Israel-Hamas War
  • Features
    • As Equals
    • Call to Earth
    • Freedom Project
    • Impact Your World
    • Inside Africa
    • CNN Heroes
  • Watch
    • Live TV
    • Featured
    • CNN Fast
    • Shows A-Z
    • CNN 10
    • CNN TV Schedule
  • Listen
    • All There Is with Anderson Cooper
    • Chasing Life with Dr. Sanjay Gupta
    • The Assignment with Audie Cornish
    • Terms of Service with Clare Duffy
    • CNN 5 Things
    • All CNN Podcasts
  • Games
    • Daily Crossword
    • Jumble Crossword
    • Photo Shuffle
    • Sudoblock
    • Sudoku
    • 5 Things Quiz
  • About CNN
    • Photos
    • Investigations
    • CNN Profiles
    • CNN Leadership
    • CNN Newsletters
    • Work for CNN

Download the CNN App
Out of This World
Ad Feedback

The art of imagining life beyond Earth

Updated 4:30 AM EDT, Wed October 5, 2016
Link Copied!
In 1975 a research group led by Princeton professor Gerard O'Neill conducted a 10 week study of future space colonies. Acclaimed space artists Rick Guidice and Don Davis were commissioned to illustrate the fantastical and as yet unrealized concepts.
NASA's imagined space colonies —
In 1975 a research group led by Princeton professor Gerard O'Neill conducted a 10 week study of future space colonies. Acclaimed space artists Rick Guidice and Don Davis were commissioned to illustrate the fantastical and as yet unrealized concepts.
NASA Ames Research Center
O'Neill's team settled on three potential designs for the future space stations: the Bernal Sphere, the Toroidal Colony (here imagined by Davis) and the Cylindrical Colony. Potential capacity ranged from 10,000 people to one million, and featured circular designs which rotated to generate artificial gravity.
Envisaging the future —
O'Neill's team settled on three potential designs for the future space stations: the Bernal Sphere, the Toroidal Colony (here imagined by Davis) and the Cylindrical Colony. Potential capacity ranged from 10,000 people to one million, and featured circular designs which rotated to generate artificial gravity.
NASA Ames Research Center
The Cylindrical Colony -- imagined here by Guidice -- is the most spacious of O'Neill's concepts. The design, later dubbed the 'O'Neill Cylinder', was riffed on in Christopher Nolan's intergalactic blockbuster "Interstellar" forty years later.
From page to screen —
The Cylindrical Colony -- imagined here by Guidice -- is the most spacious of O'Neill's concepts. The design, later dubbed the 'O'Neill Cylinder', was riffed on in Christopher Nolan's intergalactic blockbuster "Interstellar" forty years later.
NASA Ames Research Center
The Bernal Sphere was first proposed by John Desmond Bernal as far back as 1929, with O'Neill's team adapting the half-century old idea. Here, Guidice imagines a colorful, highly-curved living surface that featured a "crystal palace" for agriculture and light reflected in via windows near the poles.
Crystal palace —
The Bernal Sphere was first proposed by John Desmond Bernal as far back as 1929, with O'Neill's team adapting the half-century old idea. Here, Guidice imagines a colorful, highly-curved living surface that featured a "crystal palace" for agriculture and light reflected in via windows near the poles.
NASA Ames Research Center
In a paper presented to NASA, O'Neill uses 1990 as a hypothetical start date for a space colony, with the team drawing up a number of potential costs for construction and transportation -- even the volume of livestock each station would need to ship in. Here, Davis depicts how this could work.
1990: A Space Odyssey? —
In a paper presented to NASA, O'Neill uses 1990 as a hypothetical start date for a space colony, with the team drawing up a number of potential costs for construction and transportation -- even the volume of livestock each station would need to ship in. Here, Davis depicts how this could work.
NASA Ames Research Center
Rick Guidice's painting of a cutaway of the Bernal Sphere also shows some of the huge solar arrays required to power the station and its rotation.
Cutaway of the Bernal Sphere —
Rick Guidice's painting of a cutaway of the Bernal Sphere also shows some of the huge solar arrays required to power the station and its rotation.
NASA Ames Research Center
Despite the futuristic technology required to put such a massive structure in space, all of the artwork from Guidice and Davis -- including this image by Davis -- shows lush green landscapes -- a far cry from the reality of the International Space Station today.
Lush green landscapes —
Despite the futuristic technology required to put such a massive structure in space, all of the artwork from Guidice and Davis -- including this image by Davis -- shows lush green landscapes -- a far cry from the reality of the International Space Station today.
NASA Ames Research Center
Don Davis' illustration of a Cylindrical Colony imagines what a solar eclipse would look like from space. Davis' work can also be seen on the Discovery Channel and the Science Channel.
Solar eclipse from space —
Don Davis' illustration of a Cylindrical Colony imagines what a solar eclipse would look like from space. Davis' work can also be seen on the Discovery Channel and the Science Channel.
NASA Ames Research Center
Here, Davis depicts a construction crew piecing together a Bernal Sphere -- complete with houses, grass and rivers, seemingly unscathed by the vacuum of space.
Construction crew at work on a colony —
Here, Davis depicts a construction crew piecing together a Bernal Sphere -- complete with houses, grass and rivers, seemingly unscathed by the vacuum of space.
NASA Ames Research Center
In this image, Rick Guidice imagines a Bernal Sphere with tilted arrays to maximize exposure to the sun. Guidice illustrated for NASA for 15 years, before becoming a building designer. Guidice has designed homes for many of Silicon Valley's leaders.
Bernal sphere —
In this image, Rick Guidice imagines a Bernal Sphere with tilted arrays to maximize exposure to the sun. Guidice illustrated for NASA for 15 years, before becoming a building designer. Guidice has designed homes for many of Silicon Valley's leaders.
NASA Ames Research Center
The Cylindrical Colony was never envisaged as a solitary structure, instead orbiting with a partner -- as demonstrated by Guidice's painting.
The orbiting colony —
The Cylindrical Colony was never envisaged as a solitary structure, instead orbiting with a partner -- as demonstrated by Guidice's painting.
NASA Ames Research Center
Davis also depicted the exterior view of a Toroidal colony, featuring a giant tilted mirror providing sunlight to the interior surface of the ring.
Reflecting sunlight —
Davis also depicted the exterior view of a Toroidal colony, featuring a giant tilted mirror providing sunlight to the interior surface of the ring.
NASA Ames Research Center

My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

Live TV Listen Watch
  • World
    • Africa
    • Americas
    • Asia
    • Australia
    • China
    • Europe
    • India
    • Middle East
    • United Kingdom
  • US Politics
    • Trump
    • Facts First
    • CNN Polls
    • Elections 2026
    • Redistricting Tracker
    • Epstein Files
  • Business
    • Tech
    • Media
    • Calculators
    • Videos
  • Markets
    • Pre-markets
    • After-Hours
    • Fear & Greed
    • Investing
  • Health
    • Life, But Better
    • Fitness
    • Food
    • Sleep
    • Mindfulness
    • Relationships
  • Entertainment
    • Movies
    • Television
    • Celebrity
  • Tech
    • Innovate
  • Style
    • Arts
    • Design
    • Fashion
    • Architecture
    • Luxury
    • Beauty
    • Video
  • Travel
    • Destinations
    • Food & Drink
    • Stay
    • News
    • Videos
  • Sports
    • Football
    • Tennis
    • Golf
    • Motorsport
    • US Sports
    • Olympics
  • Science
    • Space
    • Life
    • Unearthed
  • Climate
    • Solutions
    • Weather
  • Weather
    • Video
    • Climate
  • Ukraine-Russia War
  • Israel-Hamas War
  • Features
    • As Equals
    • Call to Earth
    • Freedom Project
    • Impact Your World
    • Inside Africa
    • CNN Heroes
  • Watch
    • Live TV
    • Featured
    • CNN Headlines
    • Shows A-Z
    • CNN 10
    • CNN TV Schedule
  • Listen
    • All There Is with Anderson Cooper
    • Chasing Life with Dr. Sanjay Gupta
    • The Assignment with Audie Cornish
    • Terms of Service with Clare Duffy
    • CNN 5 Things
    • All CNN Podcasts
  • Games
    • Daily Crossword
    • Jumble Crossword
    • Photo Shuffle
    • Sudoblock
    • Sudoku
    • 5 Things Quiz
  • About CNN
    • Photos
    • Investigations
    • CNN Profiles
    • CNN Leadership
    • CNN Newsletters
    • Work for CNN

Watch Listen Live TV
My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account
Follow CNN Style

Download the CNN app
Download the CNN app

Terms of Use Privacy Policy Ad Choices Accessibility & CC About Newsletters Transcripts Sitemap

© 2026 Cable News Network. A Warner Bros. Discovery Company. All Rights Reserved.
CNN Sans ™ & © 2016 Cable News Network.

Download the CNN app

Scan the QR code to download the CNN app on Google Play.

Scan the QR code to download the CNN app from Google Play.

Download the CNN app

Scan the QR code to download the CNN app from the Apple Store.

Scan the QR code to download the CNN app from the Apple Store.