NASA's new space telescope spotted a 13 billion-year-old galaxy that is much too complex to exist that early in the universe. The galaxy, which is bigger than the Milky Way, could upheave what we know about how dark matter shaped the early universe. Light travels at a fixed speed through space, so the image of these early galaxies in the past is only reaching us now. According to current cosmology models, that should not be possible because dark matter is not supposed to have been mature enough at that time. "This dark matter — we don't know what it actually is —started out really smooth, with only the tiniest of ripples.

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Persons: —, Karl Glazebrook, James Webb, Ivo Labbe, Swinburne University of Technology —, Labbe, Claudia Lagos, it's Organizations: Service, Swinburne University of Technology, Telescope, Reuters, University of Western Locations: University of Western Australia