Using the both ALMA and the VLT, astronomers have imaged the cold, rock-strewn rings encircling the planet Uranus. Rather than observing the reflected sunlight from these rings, ALMA and the VLT imaged the millimeter and mid-infrared “glow” naturally emitted by the frigidly cold particles of the rings themselves.

Dr. Anneila Sargent of Caltech is honored for her research accomplishments, leadership in the astronomical community, and mentoring of younger scientists.

On May 30, 2019, the Russian RadioAstron satellite — the farthest element of an Earth-to-space radio-telescope system — ended its service.

New ALMA observations reveal a never-before-seen disk of cool, interstellar gas wrapped around the supermassive black hole at the center of the Milky Way.

Radio astronomy facilities are working with the communications industry to preserve clear views of the radio universe.

Paulina Bocaz, the AUI Representative and NRAO Assistant Director for Chile, has been selected to join the Advisory Council of “ComunidadMujer.”

A spinning black hole pulls in material from a companion star, and its gravitational effect causes ejected jets of material to wobble like a child’s spinning top.

The Senate of Chile recognized ALMA for its role in obtaining the first image of a black hole as part of the Event Horizon Telescope.

For decades astronomers have dreamed of seeing a black hole. That dream may soon become a reality.

Using the EHT, with ALMA as its most sensitive component, astronomers have captured the first direct visual evidence of a black hole: an image of the supermassive black hole at the center of Messier 87 (M87), a giant elliptical galaxy 55 million light-years from Earth.