"How and where particles are accelerated in the jets of supermassive black holes has been a long-standing mystery." When you purchase through links on our site, we may earn an affiliate commission.

Seen from Earth, the giant elliptical galaxy M87 is just a two-dimensional blob, though one that appears perfectly symmetrical and thus a favored target of amateur astronomers. Yet, a new, highly ...

The supermassive black hole is that first one that astronomers ever photographed. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. For more than a ...