or "accretion flow," feeding the supermassive black hole located 55 million light-years from Earth at the heart of the galaxy Messier 87 (M87). The team was also able to determine that the axis ...

Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with supermassive black holes, surrounded by ... X-Ray Flashes from a Nearby Supermassive Black Hole ...

The number of Black people living in the United States reached a new high of 48.3 million in 2023. That’s up a third (33%) since 2000, according to a Pew Research Center analysis of government data.

The detailed tables which have been made available display unrounded tabulations using IPUMS data. This fact sheet relies on people self-identifying their race and ethnicity in the Census Bureau’s ...

Across cosmic history, powerful forces have acted on matter, reshaping the universe into an increasingly complex web of structures. Now, new research led by Joshua Kim and Mathew Madhavacheril at ...