Palomar Sky Survey Transients and the Case for Non-Human Probes in Early Earth Orbit

To the point

Dr. Beatriz Villarroel argues, based on analysis of old sky survey images, that there might be non-human intelligence artifacts in Earth’s orbit, explains how thousands of brief light events show straight lines of lights in single exposures, and offers two main ideas—remnants of a prior civilization or non-human probes—while acknowledging that natural or instrumental explanations could still apply and that the findings are still uncertain.