A star’s mass determines its entire life story, from how it shines to how it dies. For young stars shrouded in dust, getting an accurate mass has long been difficult…but new radio measurements are beginning to change that.
Recent News
3I/ATLAS Contains 30X More Semi-Heavy Water Than Comets In Our Solar System
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) discovered that the interstellar comet 3I/ATLAS is made of an astonishingly high ratio of semi-heavy water relative to water, indicating that its system of origin likely formed under conditions far colder than our own.
Women and Girls in Astronomy Program Now Accepting Applications
The Women and Girls in Astronomy Program (WGAP), led by Associated Universities Inc. (AUI), under the North American Regional Office of Astronomy for Development (NA-ROAD) has been awarded a three-year grant from the Henry Luce Foundation to expand its impact.
NASA’s Chandra and the Very Large Array See Surprisingly Strong Black Hole Jet at Cosmic “Noon”
Credit: X-ray: NASA/CXC/CfA/J. Maithil et al.; Illustration: NASA/CXC/SAO/M. Weiss; Image Processing: NASA/CXC/SAO/N. Wolk
A black hole has blasted out a surprisingly powerful jet in the distant universe, according to a new study from NASA’s Chandra X-ray Observatory. This jet exists early enough in the cosmos that it is being illuminated by the leftover glow from the big bang itself.
Astronomers used Chandra and the U.S. National Science Foundation Karl G. Jansky Very Large Array (NSF VLA) to study this black hole and its jet at a period they call “cosmic noon,” which occurred about three billion years after the universe began. During this time most galaxies and supermassive black holes were growing faster than at any other time during the history of the universe.
Scientists can use this jet to probe questions about how black holes helped shape their surroundings during this critical era in cosmic history. This science was presented at the 246th American Astronomical Society Conference in Anchorage, Alaska on Monday, June 9, 2025, 10:15 AM AK. You can read the full release from Chandra.
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 June 11, 2025.
Recent News
Unraveling the Mass Mystery of Orion’s Young Stars
A star’s mass determines its entire life story, from how it shines to how it dies. For young stars shrouded in dust, getting an accurate mass has long been difficult…but new radio measurements are beginning to change that.
3I/ATLAS Contains 30X More Semi-Heavy Water Than Comets In Our Solar System
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) discovered that the interstellar comet 3I/ATLAS is made of an astonishingly high ratio of semi-heavy water relative to water, indicating that its system of origin likely formed under conditions far colder than our own.
Women and Girls in Astronomy Program Now Accepting Applications
The Women and Girls in Astronomy Program (WGAP), led by Associated Universities Inc. (AUI), under the North American Regional Office of Astronomy for Development (NA-ROAD) has been awarded a three-year grant from the Henry Luce Foundation to expand its impact.