New data from Spitzer and Hubble space telescopes show that in a few specific wavelengths of infrared light, some of the first galaxies to form in the Universe, less than 1 billion years after the Big Bang, were considerably brighter than astronomers anticipated. This artist’s illustration shows what one of the very first galaxies in the Universe might have looked like. Image credit: James Josephides, Swinburne Astronomy Productions. No one knows...