That is now the million — or perhaps trillion — dollar question. One possibility is that the neutrino was born in a cosmic ...

Did you know some of the brightest sources of light in the sky come from the regions around black holes in the centers of ...

BL Lacertae is a blazar—a kind of galaxy with a supermassive black hole and high-energy jets pointing toward Earth. Researchers had long argued over how they generate energetic X-rays.

The blazar BL Lacertae, a supermassive black hole surrounded by a bright disk and jets oriented toward Earth, provided scientists with a unique opportunity to answer a longstanding question ...

According to the IXPE's findings, high optical to X-ray polarization ratio indicates that Compton scattering might be the mechanism of X-ray generation. There are two possible and competing ...

The blazar BL Lacertae, a supermassive black hole surrounded by a bright disk and jets oriented toward Earth, provided ...

Did you know some of the brightest sources of light in the sky come from the regions around black holes in the centers of ...