Astronomers using the U.S. National Science Foundation Very Large Array (NSF VLA), together with the NASA James Webb Space Telescope and other observatories, have identified an enormous, galaxy-scale stream of super-heated gas erupting from the nearby galaxy VV 340a.

Astronomers using the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) instruments, the U.S. National Science Foundation Very Large Array (NSF VLA) and the Atacama Large Millimeter/submillimeter Array (ALMA), have revealed a dense cocoon of gas around one of the most extreme cosmic explosions ever seen, showing that a ravenous black hole ripped apart a massive star and then lit up its surroundings with powerful X-rays.

Astronomers using the U.S. National Science Foundation Very Large Array (NSF VLA) and the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered a rare protocluster that was exceptionally bright, all when the Universe was 11 billion years younger.

Astronomers have created a detailed forecast of where they expect to observe future stellar explosions in a nearby galaxy,…

Astronomers using a powerful combination of radio and optical telescopes have confirmed that a peculiar gas cloud near the spiral galaxy M94 is a “failed” galaxy; a dark-matter-dominated halo filled with gas but entirely lacking stars.

Astronomers using the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) instruments Atacama Large Millimeter/submillimeter Array (ALMA) and, the U.S. National Science Foundation Very Large Array (NSF VLA), and the W. M. Keck Observatory have uncovered the hidden lives of some of the most massive galaxies in the early Universe, revealing that while some shut down star formation quickly, others continue forming stars behind thick veils of cosmic dust.

An international group of astronomers has uncovered the clearest evidence yet that the powerful jets launched by newborn stars dependably record a star’s most violent growing pains, confirming a long‑standing model of how these jets plow through their surroundings.​​

Astronomers using the U.S. National Science Foundation Very Large Array (NSF VLA)  have made an unprecedented discovery, capturing the first-ever radio signals from a rare class of stellar explosion known as a Type Ibn supernova. This achievement brings fresh insight into the death throes of massive stars and provides a rare glimpse into the final years of a star’s life, previously hidden from view.

An international team of astronomers has discovered the first radio-bright tidal disruption event (TDE) occurring outside a galaxy’s center using the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) Very Large Array (NSF VLA) and Atacama Large Millimeter/submillimeter Array (ALMA), along with several partner telescopes,. The event, designated AT 2024tvd, revealed the fastest-evolving radio signals ever observed from this type of cosmic catastrophe.

The U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) is celebrating a historic achievement: research using our…