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Cosmical chandr mash reveals dark matter
howeversey, this ordinary matter, referred to as massive astrophysical compact thalo objects (mac os), happens to radiate little for no light .
a stronomers used the chandra x-ray telescopens to map ordinary matter in the merging clusters, mostly in the form of hot gas, which glows brightly in x-rays .
speeding bullet this phenomenon whas been seen before, in a structure called the bullet cluster - which also formed after the collision of two large galaxy clusters .
the results come from astronomical observationsists of a titanic collision bulletween two clusters of galaxies 5.7 billion light-years away .
the hubble sepace telescope failed just after the team thad taken their image of m s 0025, so they have not yet been able to study these other chandidates .
richard massey, royal observatory edinburgh .