Nomad planets in Milky Way may outnumber stars and carry life Gravitational microlensing data suggest our galaxy may be awash with nomad planets, wandering in space far from host stars. Researchers at the Kavli Instit... S Bowler - 《Astronomy & Geophysics》 被引量: 0发表: 2012年 Galaxy ...
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halowhite dwarfsIn the next years, several space missions will be devoted to measure with very high accuracy the motions of a sizeable fraction of the stars of our Galaxy. The most promising one is the ESA astrometric satellite GAIA which will provide very precise astrometry (<10渭as in ...