How Pulsars\u2019 Regular Pulses Help Measure the Cosmos<\/p>\n
Pulsars <\/a>are dense remnants of stars that spin rapidly, emitting beams of radiation. These beams sweep across space, creating regular pulses that can be detected on Earth. The timing of these pulses is incredibly stable, earning pulsars the title of \u201ccosmic clocks.\u201d Millisecond pulsars, which spin even faster than regular pulsars, are particularly useful for precise measurements.<\/p>\n However, the turbulent environment surrounding Sagittarius A*<\/a> has made it difficult to study pulsars in this part of the Milky Way. According to the team at Columbia University, the Breakthrough Listen Galactic Center Survey is one of the most sensitive radio surveys conducted in this region, designed to uncover new pulsars despite the chaotic forces at play.<\/p>\n Can Einstein\u2019s Theory Survive a Black Hole?<\/p>\n One of the most thrilling aspects of this discovery, published in The Astrophysical Journal<\/a>, is the opportunity to test Einstein\u2019s General Theory of Relativity<\/a> near a supermassive black hole. Sagittarius A*, with a mass about four million times that of the Sun, exerts an immense gravitational force on objects around it. As explained by research co-author Slavko Bogdanov<\/a> from Columbia University:<\/p>\n \u201cAny external influence on a pulsar, such as the gravitational pull of a massive object, would introduce anomalies in this steady arrival of pulses, which can be measured and modeled.\u201d\u00a0<\/p>\n Tracking the timing of a pulsar\u2019s pulses near such a massive object could provide new insights into the effects of gravity <\/a>in extreme conditions. This would be an unprecedented opportunity to test aspects of General Relativity that have not been observable in such a powerful gravitational environment before.<\/p>\n Open Collaboration in the Search for Answers<\/p>\n Given the importance of this discovery, follow-up observations are already in progress to confirm the pulsar\u2019s existence and behavior. To encourage further collaboration, the team behind the Breakthrough Listen initiative has made their data publicly available. <\/p>\n![\"A](\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2026\/02\/A-visual-representation-of-the-Green-Bank-Telescope-capturing-data-from-the-Milky-Ways-center.webp.webp\")
A visual representation of the Green Bank Telescope capturing data from the Milky Way\u2019s center. Credit: Danielle Futselaar \/ Breakthrough Listen<\/p>\n![\"Graph](\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2026\/02\/Graph-showing-orbital-period-versus-eccentricity-for-different-stellar-systems-near-a-supermassive-b.webp\")
Graph showing orbital period versus eccentricity for different stellar systems near a supermassive black hole. Credit: The Astrophysical Journal<\/p>\n