Please consider donating to Behind the Black, by giving either a one-time contribution or a regular subscription, as outlined in the tip jar to the right. Your support will allow me to continue covering science and culture as I have for the past twenty years, independent and free from any outside influence.
The Pioneer anomaly is fading.
The analysis shows that the anomaly is not constant, as researchers had believed, but is decreasing with time. The finding points toward a conventional explanation of the phenomenon, most likely asymmetric radiation of heat, and against some of the more exotic proposals.