Einstein and Newton may have been wrong about gravity

Groundbreaking study based on observations from the European Space Agency’s billion-pixel Gaia space telescope, revealing a “gravitational anomaly” that challenges our fundamental understanding of the universe. This anomaly occurs when loosely orbiting stars, known as wide binaries, appear to move contrary to the standard model of gravity established by Albert Einstein and Isaac Newton.

Astronomer Kyuhyun Choi of Sejong University in South Korea made the discovery while studying binary star systems, which refer to two stars orbiting each other. At accelerations less than 0.1 nanometers/second, the orbits of the two stars deviate from Newton’s law of universal gravitation and Einstein’s general theory of relativity.

This finding calls into question the existence of “.dark matter” was often used to describe such anomalies. “Testing gravity with wide binaries is interesting because dark matter plays no role in internal dynamics,” Chae said.

Professor Choi theorized A model known as Modified Newtonian Dynamics (MOND) is believed to potentially explain why these previous paradigms failed to explain the motion of stars. MOND was first conceptualized by the Israelis. proposed by physicist Mordechai Milgrom A modification of the gravitational law at low accelerations to account for observed galaxy rotation irregularities without the need for dark matter.

“Mr. Choi’s findings are the result of a very complex analysis of state-of-the-art data, and as far as I can tell, he was very meticulous and careful in his analysis,” he said. . Milgrom, from the Weizmann Institute, Israel. “But such a broad finding, which is indeed very broad, needs confirmation by independent analysis, preferably with better data in the future.

“If this anomaly is confirmed to be a collapse of Newtonian mechanics, and especially if it indeed agrees with MOND’s simplest predictions, it will be of great interest to astrophysics, cosmology, and fundamental physics in general. It will have a huge impact,” he added.

Professor Choi commented As for the impact, it argued that potential systematic errors were rigorously tested and the results appeared to be genuine. He expects the results to be further scrutinized and refined as more data become available.

Nonetheless, these discoveries could have profound implications for our conception of the universe. “The standard cosmology is based on general relativity, so cosmology now needs a major revision,” Choi said. Said. “I think we are in a very exciting time right now.”