When the universe was young, there were no stars, galaxies , or even atoms. As space expanded, hydrogen atoms formed and coalesced into stars. Eventually, the first galaxies emerged, and some of those galaxies may still exist. New data from researchers at Durham University in the UK and Harvard in the US suggests several of those ancient galaxies could be in our own backyard . This discovery also lends credence to a leading model of the early universe. Our current understanding holds that the early universe was not even transparent to radiation. It took thousands of years for that […]
