# Curious numerical coincidence to the Pioneer anomaly - Physics > Space Physics

Abstract: One noticed a numerical coincidence between the Pioneer spacecraftsdeceleration anomaly and $\gamma-1$, with $\gamma$ the Lorentz factor. Thematch is not only for distances larger than 20 AU, but even for the observedslop between 10 and 20 AU. Such numerical link may eventually lead to ascientific hypothesis for future theoretical investigations.

Author: Liviu Ivanescu

Source: https://arxiv.org/