Overview

• Three paired light pulse events, observed between 2019 and 2025, have been detected around Sun-like stars HD 217014 and HD 89389, with pulse separations of 1.2–4.4 seconds.
• The pulses cause rapid brightness fluctuations in the stars, including a 'brighter-fainter-brighter' pattern lasting about 0.2 seconds, defying natural explanations.
• Extensive analysis has ruled out known false positives such as atmospheric phenomena, satellites, system noise, and other terrestrial sources.
• The findings, published in *Acta Astronautica*, suggest that conventional astrophysical mechanisms are insufficient to explain the signals, leaving extraterrestrial involvement as a possibility.
• Further observations and analysis are ongoing to determine the origins of these unprecedented signals, with scientists emphasizing the need for more data.