article_snippet: In recent years the search for life beyond our planet has focused on finding places with conditions that are ‘Earth-like’, so as to emulate our own planet, which we know can support life.
article_snippet: However, scientists have now proposed that some worlds might be able to host life
article_snippet: The fascinating research by scientists at Cornell University in New York suggests that life in the universe may be abundant in more places than thought.
article_snippet: No life on Earth is known to be able to survive in similar conditions.
article_snippet: As no life on Earth can survive without water, astronomers have been looking for alien life in habitable zones of stars where liquid water can exist - it is not too hot, and not too cold.
article_snippet: A study in November 2014 argued that alien species could exist on planets that contain an exotic substance known as 'supercritical' carbon dioxide, rather than water.
article_snippet: This means it could survive on the surface of Titan (illustration shown), meaning more worlds might be habitable than we thought .
article_snippet: However, it shows the same stability and flexibility as comparable life on Earth.
highlights_snippet: This means it could live on the surface of Saturn's moon Titan .
  
highlights_snippet: And it may also mean more places are habitable than we thought .
  