The universe will be as visible as the palm of his hand for Hazrat Mahdi (as). (Bihar al-anwar, vol. 52, p. 328)
The hadith indicates that Hazrat Mahdi (as) will make use of technology in the End Times. Wide-ranging information about the universe will be obtained in the End Times. By the will of Allah, many things that were hitherto unknown will be learned through advances made in the End Times. Hazrat Mahdi (as) will use hand-held computer technology to obtain any information he wants or to establish communication with anywhere in the world.