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A recent study of the satellite galaxies surrounding the Milky Way casts doubt on existing models of dark matter — according to its authors in Germany, Austria and Australia. The locations of the gala...
Several Jupiter sized planets found to have only weak Earth like gravity（图）
Jupiter solar system
2007/5/11
2 May 2007，Astrophysicists at the University of Warwick have found that several Jupiter sized gas giants beyond our solar system have surface gravities much closer in strength to Earth than the intens...