Researchers from the Purple Mountain Observatory (PMO) of the Chinese Academy of Sciences and the Italian National Institute for Astrophysics have proposed a new method to measure moderately saturated ...

After a distant star's explosive death, an active stellar corpse was the likely source of repeated energetic flares observed over several months -- a phenomenon astronomers had never seen before, ...

Flaring has been observed in 3C 273 in the BVRI spectrum during January 1983. The increase in luminosity is especially pronounced at longer wavelengths and amounts to as much as half a magnitude ...

Astronomers discover a bright optical flare caused by a dying star's encounter with a supermassive black hole. What happens when a dying star flies too close to a supermassive black hole? According to ...

The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...