“NASA discovery: solar storms don’t always travel in straight lines“. Anthony Watts posts another NASA news report, Solar Storms can Change Directions, Surprising Forecasters. A 2008 coronal mass ejection (CME) was observed by NASA’s STEREO-A and STEREO–B spacecraft. The researchers speculate that CME’s follow the sun’s curving magnetic field until they get swept up by the solar wind. The paper by Byrne et al, Propagation of an Earth-directed coronal mass ejection in three dimensions, is in the Sept. 21, 2010 issue of Nature Communications.

The Dec. 12, 2008 coronal mass ejection observed by STEREO. Source: NASA.

I guess Anthony thinks this report is helpful in suggesting that a) we don’t know anything about that big fiery ball in the sky, and b) them scientists are going to change their minds anyway, so don’t bother listening to them.