Assertion: andromeda galaxy's star | /r/HasProperty | shown at bottom
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Source sentences:
text: While studying data collected by the European Space Agency's XMM-Newton spacecraft this past September 2018, a team of researchers observed an odd spike in X-ray emissions that corresponds to no known particle or atom and thus may have been produced by dark matter coming from two different celestial objects: the Andromeda Galaxy a swirling metropolis of a trillion stars, black holes and globular clusters (shown at top and bottom of the page) - and the Perseus Galaxy Cluster.