Earliest Stars
From IFL Science: In a groundbreaking discovery, scientists say they have found a signal from some of the earliest stars in the universe, giving us an unparalleled glimpse into the dawn of the cosmos. The signals originate from hydrogen
From The Verge: The first observation of the earliest stars in the Universe suggests they were forming about 180 million years after the Big Bang. The radio signal used to make this observation, though indirect, backs up some theoretical models