The National Science Foundation has approved funding to expand the Hydrogen Epoch of Reionisation Array (HERA) in South Africa. Upgrading the number of antennas from 19 to 240 by the year 2018 will enable HERA to study more clearly the impact of cosmic dawn, the moment a few hundred million years after the Big Bang when the first stars and galaxies blazed awake.
Fast radio bursts (FRBs), brief yet brilliant eruptions of cosmic radio waves, have baffled astronomers since they were first reported nearly a decade ago. Though they appear to come from the distant universe, none of these enigmatic events has revealed more than the slimmest details about how and where it formed, until now.
Hubble Space Telescope observations have taken advantage of gravitational lensing to reveal the largest sample of the faintest and earliest known galaxies in the universe, formed just 600 million years after the Big Bang. Astronomers have determined, for the first time with some confidence, that these small galaxies were vital to creating the universe that we see today.