Wesley LePatner, a senior executive at Blackstone, was among the four victims of a gunman who opened fire on Monday in a Park ...

An infinity symbol–shaped galaxy hosts an active supermassive black hole. The growing giant may have come from the aftermath of a galactic smashup.

“The gas spans the entire width of the system and was likely shocked and compressed at the collision site,” they and their colleagues said in a study soon to be published in the Astrophysical Journal ...