Iron Lines in X-ray have been detected from a well-known binary black hole system in the radio galaxy 4C+37.11 750 million light years away from the Earth, making way for study of the properties of ...
and the telescopes of the VLBA (Very Long Baseline Array) in the US. The EHT Collaboration involves more than 400 researchers from Africa, Asia, Europe, North and South America. The international ...
Artist’s impression of a classical nova eruption. Credit: Krzysztof Ulaczyk / Astronomical Observatory, University of Warsaw, edited A groundbreaking discovery by an international team of astronomers ...