 Trenti says that new "most distant" record holders will soon be announced, but only incremental distance gains will be realized until NASA's James Webb Space Telescope becomes operational in 2021.The James Webb telescope should be able to detect galaxies more than 13.4 billion light years away, less than 300 million years after the Big Bang.Bremer states that it, and eventually the European Extremely Large Telescope, which will have a mirror five times the diameter of Yepun's, and is tentatively scheduled for first light in 2024, will enable more detailed study of galaxies at such great distances.