Can Aliens Live Without Water?

Astronomy Science ~ The hunt for alien life so far focused on the planet that may contain water, but scientists claim we should look furthe...

Astronomy Science ~ The hunt for alien life so far focused on the planet that may contain water, but scientists claim we should look further. A new study states that alien species could exist on the planet that contains exotic substances known as carbon dioxide 'supercritical'

Type CO2 created when the liquid and gas reaches a temperature and pressure at their threshold, creating a supercritical fluid which has the features of liquids and gases.

Carbon dioxide becomes supercritical when the temperature exceeds 305 degrees Kelvin (32 ° C) and standard atmospheric pressure exceeded 72.9 at sea level.

Illustration of alien planet in the movie Riddick
On Earth, carbon dioxide 'supercritical' is used in dry cleaning or to sterilize medical equipment, but astrobiologists at Washington State University believe that carbon dioxide 'supercritical' is also capable of sustaining life. "I was always interested in life that may be exotic and creative adaptations of organisms to extreme environments," said study co-author Professor Dirk Schulze-Makuch.

Supercritical CO2 is often overlooked, so I felt that someone had to collect something good potential for biological. Professor Schulze-Makuch and his team compared the enzymes in carbon dioxide and water, and found that they are more stable in supercritical CO2.

Supercritical carbon dioxide to make enzymes that fussy mutually binding molecules that cause fewer side reactions. They also found that a number of bacterial species tolerant of supercritical carbon dioxide.
Previous studies have found that microbes can live near liquid carbon dioxide trapped beneath the Earth's oceans - and areas where the liquid can be supercritical.

For instance, core samples taken from the seabed off the west coast of the United States containing traces of micro-organisms that live in total darkness and almost entirely cut off from the world over. The researchers believe that supercritical carbon dioxide may exist on Venus, whose atmosphere contains mostly carbon dioxide. If so, there may be the fossil remains of life that may have existed on this planet.

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AstroNation: Can Aliens Live Without Water?
Can Aliens Live Without Water?
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