on astronomical data, but the new results indicate that the first galaxies will be bright enough to be seen by nasa's james webb space telescope, to be launched later this year. i am so excited! why are you so excited? isn't that just fantastic? that, as humanity, a tiny little civilisation on planet earth, that we can create a telescope that we can send up into space and peer back to the universe as it was just a couple of hundred million years after the big bang. this simulation shows just how different the very first stars were to what we see today. but these objects led to the formation of the universe as it is now, including everything and everyone on earth. we are, ultimately, made from the stars that were born at the dawn of the cosmos. pallab ghosh, bbc news. you can reach me on twitter — i'm @benmboulos.