Astronomers discovers a star system which have SEVEN Earth-like planets

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Astronomers have discovered a star system which have SEVEN Earth-like planets on its orbit. According to scientist who believed these planets that could support life form, says three of the planets have such good conditions. Found near dwarf star, 'Trappist-1', is 39 light years away from planet Earth.


According to lead-author Michaël Gillon, an astronomer at the University of Liège, Belgium, He said;
'We now have seven planets that we can study in detail for life, and this is something we are already doing, ''People will hear more and more about this system in the coming months and years.'   
Though all seven planets could have liquid water, three of them - 1e, 1f, 1g - have the right atmospheric conditions to hold oceans of water at their surface.
These oceans may have already evolved life, though co-author Dr Amaury Triaud told MailOnline that the researchers cannot possibly know at what stage this life might be.
'We only know the star is older than half a billion years and likely the planets are too, so far we do not know if there is liquid water and even less if there is life,' he said.
The team have already begun using larger telescopes positioned across the globe to search the atmospheres of the planets for signs of life.
'Several different molecules and relative make-ups of atmosphere will allow us to conclude that there is biological life present,' lead-author Dr Michael Gillon said.
'The presence of methane, water, oxygen, and carbon dioxide are all strong indicators.'
The team say that they will know if biological life exists on the planet within a decade. While the Trappist-1 star is not young at half a billion years old, the system is burning through its hydrogen reserves at a slow pace.


Astronomer Professor Ignas Snellen of the Netherlands's Leiden University, not involved in the study, claims that the system has great potential for evolving life in the future.
'In a few billion years, when the sun has run out of fuel and the solar system has ceased to exist, Trappist-1 will still be only an infant star,' she writes in a Nature News and Views article.
'It burns hydrogen so slowly that it will live for another 10 trillion years, more than 700 times longer than the universe has existed so far, which is arguably enough time for life to evolve.'

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