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A star explodes into a dense disk of helium-rich material, generating strong radio waves for the first time. How did this happen? One idea is that years before any explosion, a small star stripped of its hydrogen and made of mostly helium orbits an even smaller ultra-dense star made of neutrons. As the stars approach each other, the helium star begins to lose more and more mass to the neutron star, forming a chaotic disk of material around the system. Eventually, there is an explosion, with the exact cause unclear. The ejected material in the explosion slams into the disk of mass lost, creating shocks which produce strong radio emission. This emission was then observed by astronomers using the Very Large Array.
Astronomers Make First Radio Detection of Rare Supernova Type, Revealing Secrets of Stellar Death
December 12, 2025 at 2:55 pm | News Release

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.

The ngVLA Prototype at the VLA site in New Mexico.
NSF National Radio Astronomy Observatory and Mexican Institutions Sign Historic Agreements to Advance ngVLA Collaboration
November 14, 2025 at 12:11 pm | News Release

The U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO), in partnership with several leading Mexican universities and research institutes, has announced a series of landmark agreements and meetings aimed at advancing Mexico’s role in the Next Generation Very Large Array (ngVLA) project. This represents a significant step in strengthening international collaboration for one of the world’s most ambitious astronomical observatories.

James Webb Space Telescope deep field image with highlighted distant red galaxy
Astronomers Discover a Superheated Star Factory in the Early Universe
November 12, 2025 at 5:27 pm | News Release

Astronomers have uncovered a previously unknown, extreme kind of star factory by taking the temperature of a distant galaxy…

The NSF Green Bank Telescope.
Astronomers Share Largest Molecular Survey To-date: GOTHAM Legacy Data Goes Public
October 23, 2025 at 12:46 pm | News Release

A groundbreaking new dataset from the U.S. National Science Foundation Green Bank Telescope (NSF GBT) is now publicly available,…

This collection of images shows the location of the CO-dark molecular gas in the constellation Cygnus X, and NSF Green Bank Telescope data of the gas in the galactic latitude and longitude.
Astronomers Map Mysterious “Dark” Gas in the Milky Way
October 23, 2025 at 12:37 pm | News Release

An international team of astronomers has created the first-ever large-scale maps of a mysterious form of matter, known as…

Illustration of new ALMA observations revealing spiral-shaped gas streamer guided by magnetic fields in a star-forming nursery
Astronomers Spot Magnetically-Guided Streamer Funneling Star-Building Material into Newborn System in Perseus
October 20, 2025 at 12:00 pm | News Release

A team of astronomers led by Paulo Cortes, a scientist with the U.S. National Science Foundation National Radio Astronomy…

Showing news items 31 - 40 of 939