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  • BBC Science Focus Magazine

    A VIEW ACROSS TIME

    Apr 08, 2020 4 minutes
    by DR ELIZABETH PEARSON (@EzzyP)
    “HUBBLE IS BEING USED TO OBSERVE CLUSTERS OF GALAXIES TO DETECT THESE ARCS OF DISTORTED LIGHT”

    Hubble’s high resolution, large aperture and extreme precision means that it can pull photons out of the darkest reaches of the Universe, looking further back than any visual telescope that came before it. As the light from these distant galaxies and stars has taken billions of years to cross the void, we see them as they were millennia ago, all the way back to the earliest days of the Universe.

    “We can compare the nature of the most distant galaxies to those

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