An ancient biological weapon that consumes living tissue, split into two halves by its makers and sought by Krall to attack Starbase Yorktown in Star Trek Beyond.
The Abronath is the object everyone is chasing in the film Star Trek Beyond. In 2263 Captain Kirk offers one half, believed to be a harmless relic, to the Teenaxi as a peace gift, and they reject it. It is stored aboard the Enterprise, where Ensign Syl later hides it.
Krall, once the Starfleet captain Balthazar Edison, has the other half. He destroys the Enterprise over Altamid to seize Kirk's piece, and joins the two into a weapon that releases a black swarm able to dissolve a person in moments. He tests it on Syl.
Krall carries the weapon into the atmosphere processor at the heart of Starbase Yorktown, intending to kill millions. Kirk fights him in shifting gravity and opens a hatch, and both Krall and the Abronath are blown out into space, where the weapon consumes him.