PARIS, April 11, 2025 (BSS/AFP) - A massive black hole at the heart of a galaxy in the Virgo constellation is waking up, shooting out intense X-ray flares at regular intervals that have puzzled ...

A US Army Black Hawk helicopter did not have ADS-B operating when it collided with an American Eagle Bombardier CRJ700 in Washington DC. The ADS-B is an advanced surveillance technology that provides ...

Discovery of extreme quasi-periodic eruptions in a newly accreting massive black hole. Nature Astronomy , 2025; DOI: 10.1038/s41550-025-02523-9 Cite This Page : ...

A massive black hole at the heart of a galaxy in the Virgo constellation is waking up, shooting out intense X-ray flares at regular intervals that have puzzled scientists, a study said Friday.

Although we know that supermassive black holes (millions of times the mass of our Sun) lurk at the centre of most galaxies, their very nature makes them difficult to spot and study. In contrast to ...

Cruz said the committee is reviewing the memo. An Army Black Hawk helicopter did not have the system operating during a routine training mission when it collided with an American Airlines AAL.O ...