Researchers have identified an exceptionally unusual cosmic object known as a Long Period Radio Transient (LPT), named CHIME J1634+44.
Recent News
Astronomers Discover Massive Molecular Cloud Hidden in Milky Way
In a new study published in the Astrophysical Journal, researchers using the U.S. National Science Foundation Green Bank Telescope (NSF GBT) have peered into a molecular cloud known as M4.7-0.8, nicknamed the Midpoint cloud. Their observations have revealed a dynamic region bustling with activity, including potential sites of new star formation.
Galactic Mystery: How “Ice Cubes” Survive in the Milky Way’s Blazing Bubbles
A team of astronomers has made a surprising discovery using the U.S. National Science Foundation Green Bank Telescope (NSF GBT): eleven fast-moving clouds of cold, neutral hydrogen gas—akin to “ice cubes”—surviving deep inside the Fermi Bubbles.
Groundbreaking Magnetic Field Discovery Near Massive Protostar
Schematic of circular polarization being detected in radio waves from a massive protostar surrounded by a disk and driving a bipolar jet. This is an artistic image, not drawn to scale. Credit: AG Cheriyan/IIST
The U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) proudly announces a major breakthrough in our understanding of star formation, thanks to the unparalleled capabilities of the U.S. National Science Foundation Karl G. Jansky Very Large Array (NSF VLA). An international team, led by astronomers from the Indian Institute of Space Science and Technology (IIST) and the Indian Institute of Science (IISc), has for the first time detected circular polarization in radio emission originating from a massive protostar, IRAS 18162-2048—unveiling fresh clues about the cosmic forces shaping our universe.
Circularly polarized radio waves have been directly observed from a young, massive protostar, a phenomenon previously recorded only near black holes and low-mass protostars, demonstrating a new link between diverse cosmic environments. This rare signal, detected using the NSF VLA, has enabled astronomers to infer magnetic field strengths of about 20–35 Gauss close to the forming star. These values are roughly 100 times stronger than Earth’s magnetic field—providing the first direct clues to magnetic field strengths in such extreme environments. The findings reinforce a long-standing theory that the mechanisms launching powerful astrophysical jets are fundamentally similar, from low-mass stars through to supermassive black holes.
NSF NRAO is honored to contribute this critical technology and support to discoveries that deepen humanity’s knowledge of the cosmos. Read the full releases from IIST and IISc.
About NRAO
The National Radio Astronomy Observatory (NRAO) is a facility of the U.S. National Science Foundation, operated under cooperative agreement by Associated Universities, Inc.
This news article was originally published on the NRAO website on July 18, 2025.
Recent News
Space’s Spinning Enigma: A ‘Unicorn’ Object Defies Astrophysics
Researchers have identified an exceptionally unusual cosmic object known as a Long Period Radio Transient (LPT), named CHIME J1634+44.
Astronomers Discover Massive Molecular Cloud Hidden in Milky Way
In a new study published in the Astrophysical Journal, researchers using the U.S. National Science Foundation Green Bank Telescope (NSF GBT) have peered into a molecular cloud known as M4.7-0.8, nicknamed the Midpoint cloud. Their observations have revealed a dynamic region bustling with activity, including potential sites of new star formation.
Galactic Mystery: How “Ice Cubes” Survive in the Milky Way’s Blazing Bubbles
A team of astronomers has made a surprising discovery using the U.S. National Science Foundation Green Bank Telescope (NSF GBT): eleven fast-moving clouds of cold, neutral hydrogen gas—akin to “ice cubes”—surviving deep inside the Fermi Bubbles.