For the first time, astronomers have probed the physical environment of repeating X-ray outbursts near monster black holes ...

Astronomers have probed the physical environment of repeating X-ray outbursts near monster black holes thanks to data from NASA's NICER (Neutron star Interior Composition Explorer) and other missions.

According to the Environmental Protection Agency (EPA), the 2025 Lexus NX 250 achieves 28 mpg in combined driving, while the ...