
The journey to Mars could take just four months. Settling on the planet would be extremely hazardous, especially the freezing temperatures and carbon dioxide atmosphere. Many scientists think colonizing space is essential. Stephen Hawking believes we must move to other planets to survive as a species. He said: “Once we spread out into space and establish independent colonies, our future should be safe.” Dirk Schulze-Makuch and Paul Davies call it a “desirable goal” and part of our desire to explore saying: “It would require not only major international cooperation, but a return to the exploration spirit and risk-taking [character] of the great period of Earth exploration, from Columbus to Amundsen.”
http://breakingnewsenglish.com/1010/101029-mars.html
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