“I Couldn’t Believe My Eyes”–A Strange Signal from One of the Largest Objects in the Cosmos

    “I couldn’t believe my eyes,” said Esra Bulbul of the Harvard Center for Astrophysics in July of 2014 of a still unfolding story about a strange signal that appeared not to come from any known type of matter detected in the x-ray spectrum in the Perseus Cluster –one of the most massive known … Continue reading “I Couldn’t Believe My Eyes”–A Strange Signal from One of the Largest Objects in the Cosmos