- Is it ethical to colonize Mars? (Opinion) - CNN.com http://www.cnn.com/2015/10/15/opinions/green-ethics-of-mars-settlement/index.html 97 comments spacex
- Would It Be Ethical To Colonize Mars? http://www.forbes.com/sites/janetstemwedel/2015/09/30/would-it-be-ethical-to-colonize-mars/ 12 comments space
- What, if anything, do we know about SpaceX's work to address political and ethical obstacles to colonizing Mars? http://www.unoosa.org/oosa/SpaceLaw/outerspt.html 92 comments spacex
- Colonizing Mars means contaminating Mars – and never knowing for sure if it had its own native life. If the red planet is sterile, a human presence there would create no moral or ethical dilemmas. But if life does exist on Mars, human explorers could easily lead to the extinction of Martian life. https://www.sfchronicle.com/news/article/colonizing-mars-means-contaminating-mars-and-13366135.php 37 comments space