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National Radio Astronomy Observatory

The National Radio Astronomy Observatory (NRAO) is a facility of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc. Founded in 1956, NRAO provides state-of-the-art radio telescope facilities—including the Very Large Array (VLA), ALMA, VLBA, and Green Bank Telescope—for use by the international scientific community.

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Press Releases

Twisted Physics: Astronomers Solve 30-Year-Old Stellar Mystery

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA), of which the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) is a partner, have captured the first direct, high-resolution images of a magnetic field wrapped tightly around the outflow of gas streaming away from a forming star — evidence that solves a decades-old puzzle about how young stars sculpt the powerful jets that form them. The post Twisted Physics: Astronomers Solve 30-Year-Old Stellar Mystery appeared first on National Radio Astronomy Observatory .

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A Trillion Mile Cosmic Stream of Gas Feeds GW Orionis

A team of astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA), of which the U.S. National Science Foundation National Radio Astronomy Observatory is a partner, has captured a massive stream of gas—one trillion miles, or .2 light years long—feeding the young triple-star system GW Orionis. These new observations provide the clearest evidence yet for how such “streamers” can tilt and twist the disks where planets are born. The post A Trillion Mile Cosmic Stream of Gas Feeds GW Orionis appeared first on National Radio Astronomy Observatory .

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NSF NRAO radio observations help rule out a relativistic jet in rare stellar explosion

Astronomers studying a rare stellar explosion first spotted as a brief burst of X-rays used radio observations to help show that the dying star did not produce the powerful jet often associated with gamma-ray bursts. The post NSF NRAO radio observations help rule out a relativistic jet in rare stellar explosion appeared first on National Radio Astronomy Observatory .

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U.S. National Science Foundation, NSF National Radio Astronomy Observatory, and U.S. Naval Observatory Partner on Pathfinder for Next Generation Very Large Array

The U.S. National Science Foundation (NSF), the NSF National Radio Astronomy Observatory (NSF NRAO), and the U.S. Naval Observatory (USNO) are advancing a new collaboration to support the future of high-resolution radio astronomy and astrometry, with the development of a pathfinder instrument for the proposed Next Generation Very Large Array (ngVLA). The post U.S. National Science Foundation, NSF National Radio Astronomy Observatory, and U.S. Naval Observatory Partner on Pathfinder for Next Generation Very Large Array appeared first on National Radio Astronomy Observatory .

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NSF VLA Sky Survey Sets New Standard for High-Resolution, Wide-Area Radio Astronomy

The U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) has completed observations for the Very Large Array Sky Survey (VLASS), the most detailed radio survey of the sky ever conducted, providing an unprecedented view of the dynamic radio universe. The post NSF VLA Sky Survey Sets New Standard for High-Resolution, Wide-Area Radio Astronomy appeared first on National Radio Astronomy Observatory .

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NSF VLA Maps a Hidden Hydrogen Shell Around the Orion Nebula

A team of astronomers led by Juan D. Soler of the University of Vienna used the NSF VLA, operated by the U.S. National Science Foundation’s National Radio Astronomy Observatories (NSF NRAO), to obtain high-resolution observations of the emission from neutral hydrogen atoms (HI) at 21 centimeters wavelength The post NSF VLA Maps a Hidden Hydrogen Shell Around the Orion Nebula appeared first on National Radio Astronomy Observatory .

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Hidden Jet from a “Missing-Link” Black Hole Lights Up the Radio Sky

Astronomers using the U.S. National Science Foundation Very Large Array (NSF VLA) have detected an extraordinary burst of radio light from a rare cosmic event in which an intermediate-mass black hole tears apart a star, revealing what appears to be the off-axis afterglow of a powerful jet. The post Hidden Jet from a “Missing-Link” Black Hole Lights Up the Radio Sky appeared first on National Radio Astronomy Observatory .

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Young Stars Shape the Fate of Galaxies

Astronomers have new insight into how young stars shape the evolution of galaxies, highlighting the powerful role of stellar... The post Young Stars Shape the Fate of Galaxies appeared first on National Radio Astronomy Observatory .

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NSF VLA and ALMA Reveal Hidden “Ring Factories” of Giant Star Clusters in Nearby Galaxies

Astronomers have used U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) radio telescopes in Chile and New Mexico to peer through cosmic smoke and haze, building one of the clearest pictures yet of how giant clusters of young stars are born in the hearts of nearby galaxies. The post NSF VLA and ALMA Reveal Hidden “Ring Factories” of Giant Star Clusters in Nearby Galaxies appeared first on National Radio Astronomy Observatory .

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Radar Echoes From Europa Reveal Secrets Beneath the Ice

A team of scientists has used NASA’s Goldstone Solar System Radar and the U.S. National Science Foundation Green Bank... The post Radar Echoes From Europa Reveal Secrets Beneath the Ice appeared first on National Radio Astronomy Observatory .

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A Quiet Corner of the Milky Way Could Hold the Secret to Star Formation

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have identified a surprisingly calm region of gas within the turbulent... The post A Quiet Corner of the Milky Way Could Hold the Secret to Star Formation appeared first on National Radio Astronomy Observatory .