ancient galaxies

  • Astronomers uncover ‘invisible’ massive ancient galaxies
    Astronomers uncover ‘invisible’ massive ancient galaxies

    Although once invisible to us in the vast reaches of the universe, 39 massive ancient galaxies have been discovered by astronomers using multiple space and ground-based observatories. This is the first discovery of its kind, the researchers said.

  • New clues about how ancient galaxies lit up the Universe
    New clues about how ancient galaxies lit up the Universe

    NASA’s Spitzer Space Telescope has revealed that some of the Universe’s earliest galaxies were brighter than expected. The excess light is a by-product of the galaxies releasing incredibly high amounts of ionising radiation. The finding offers clues to the cause of the Epoch of Reionisation, a major cosmic event that transformed the universe from being mostly opaque to the brilliant starscape seen today. The new work appears in a paper in Monthly Notices of the Royal Astronomical Society.

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