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Posted: Thu Jan 26, 2006 12:50 am
by psykotik
C'est tombé aujourd'hui : <!--QuoteBegin-http://news.bbc.co.uk/2/hi/science/natu ... tm+--><div class='quotetop'>QUOTE(http://news.bbc.co.uk/2/hi/science/nature/4647142.stm)</div><div class='quotemain'><!--QuoteEBegin-->An international team of astronomers has found the smallest Earth-like planet yet outside our Solar System.

The new planet has five times the Earth's mass and can be found about 25,000 light-years away in the Milky Way, orbiting a red dwarf star.

The discovery, reported in the journal Nature, was made using a method called microlensing, which can detect far-off planets with an Earth-like mass.

The planet's cold temperatures make the chance of finding life very unlikely.

The planet, which goes by the name OGLE-2005-BLG-390Lb, takes about 10 years to orbit its parent star, a red dwarf which is similar to the Sun but cooler and smaller.

It is in the same galaxy as Earth, the Milky Way, but is found closer to the galactic centre. <!--QuoteEnd--></div><!--QuoteEEnd-->

Depuis une dizaine d'années qu'on découvre les exo-planètes mois après mois. Et les tailles continuent à diminuer, plus besoin de faire 3 fois Jupiter pour être détecté.