Researchers from the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO), in collaboration with SpaceX, have introduced the Operational Data Sharing (ODS) system, a self-reporting framework designed to foster coexistence between radio telescopes and non-geostationary orbit (NGSO) satellite constellations, such as SpaceX’s Starlink.
Recent News
NSF VLBA Peers Into the “Eye of Sauron” to Solve Cosmic Neutrino Mystery
Findings, published in Astronomy & Astrophysics Letters, reveal that the blazar PKS 1424+240 – dubbed the “Eye of Sauron” for its striking appearance – points its powerful jet almost directly at Earth, creating an extreme cosmic lighthouse effect.
Astronomers Catch Supermassive Black Hole in the Act of ‘Waking Up’
This discovery offers new insights into how these cosmic giants begin to influence their environments and could help solve longstanding puzzles about galaxy evolution.
Scientists use Exotic Stars to Tune into Hum from Cosmic Symphony
Credit: A. Simonnet (NANOGrav)
For the last 15 years, the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) Physics Frontiers Center has been using radio telescopes supported by the National Science Foundation— including those operated by NSF’s National Radio Astronomy Observatory— to turn a suite of millisecond pulsars into a galaxy-scale gravitational-wave detector. Millisecond pulsars are remnants of extinguished massive stars; as they spin hundreds of times each second, their “lighthouse-like” radio beams are seen as highly regular pulses. Gravitational waves stretch and squeeze space and time in a characteristic pattern, causing changes in the intervals between these pulses that are correlated across all the pulsars being observed. These correlated changes are the specific signal that NANOGrav has been working to detect.
NANOGrav’s most recent dataset offers compelling evidence for gravitational waves with oscillations of years to decades. These waves are thought to arise from orbiting pairs of the most massive black holes throughout the Universe: billions of times more massive than the Sun, with sizes larger than the distance between the Earth and the Sun. Future studies of this signal will enable us to view the gravitational-wave universe through a new window, providing insight into titanic black holes merging in the hearts of distant galaxies and potentially other exotic sources of low-frequency gravitational waves.
Read the full press release from NANOGrav.
A public event discussing the results will take place on Thursday, June 29, 2023 at 1pm Eastern Time on YouTube Live.
This news article was originally published on the NRAO website on June 28, 2023.
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Satellite Internet Meets Space Science: A Groundbreaking Solution for Spectrum Sharing
Researchers from the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO), in collaboration with SpaceX, have introduced the Operational Data Sharing (ODS) system, a self-reporting framework designed to foster coexistence between radio telescopes and non-geostationary orbit (NGSO) satellite constellations, such as SpaceX’s Starlink.
NSF VLBA Peers Into the “Eye of Sauron” to Solve Cosmic Neutrino Mystery
Findings, published in Astronomy & Astrophysics Letters, reveal that the blazar PKS 1424+240 – dubbed the “Eye of Sauron” for its striking appearance – points its powerful jet almost directly at Earth, creating an extreme cosmic lighthouse effect.
Astronomers Catch Supermassive Black Hole in the Act of ‘Waking Up’
This discovery offers new insights into how these cosmic giants begin to influence their environments and could help solve longstanding puzzles about galaxy evolution.