The mystery about a thin, bizarre object in the center of the Milky Way that some astronomers believe to be a hydrogen gas cloud headed toward our galaxy's enormous black hole has been solved by astronomers.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/L...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/L...



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La prevención del VIH no llega a las jóvenes sudafricanas

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