Tuesday, July 05, 2005

The Pioneer Anomaly

from NASA

The Pioneer and Voyager spacecraft are furthest from the Sun of any spacecraft launched so far. They are experiencing a small but apparently significant unexplained sunward acceleration. There's a proposal to launch a new mission to understand this phenomenon: A Mission to Explore the Pioneer Anomaly

Saturn's Rings

Waves and Small Particles in Ring A

See the full explanation and an even larger version of this gorgeous image at JPL/NASA