Webb telescope sheds light on ancient 'monster stars' that may reveal the birth of black holes

Using data from NASA's James Webb Space Telescope, astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) ...

Blazar Ton 599's complex variability investigated by long-term observations

Using the Whole Earth Blazar Telescope (WEBT), an international team of astronomers have performed long-term photometric ...