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Dark matter ～～～

Dark matter is called "the mystery of the century"".

It occupied the 95% of the universe's site, but do not touch to could not see, even let Einstein confused, denied the existence of it. It is exciting that, after 10 years of observation, Purple Mountain Observatory experts to capture is likely to be dark matter left behind the footprints - high energy electrons, which may be a strong evidence of dark matter exists.