The VLBA finds the closest pair of supermassive black holes yet found, orbiting each other at the core of a distant galaxy.

Astronomers have used ALMA to image a delicate bubble of expelled material around the exotic red star U Antliae. These observations will help astronomers to better understand how stars evolve during the later stages of their lives.

A new, all-sky survey uses the expanded capabilities of the VLA to produce a unique and valuable resource for astronomers of all specialties.

NRAO and AUI are launching development of a new radio-telescope system with the advanced capabilities to answer critical scientific questions of the coming decades.

Animated series explains the discoveries enabled by ALMA and the wonders of the invisible universe.

Using ALMA, astronomers studied six distant starburst galaxies and discovered that five of them are surrounded by turbulent reservoirs of hydrogen gas, the fuel for future star formation.